drivers/scsi/aacraid/aachba.c

   1 /*
   2  *      Adaptec AAC series RAID controller driver
   3  *      (c) Copyright 2001 Red Hat Inc.
   4  *
   5  * based on the old aacraid driver that is..
   6  * Adaptec aacraid device driver for Linux.
   7  *
   8  * Copyright (c) 2000-2010 Adaptec, Inc.
   9  *               2010 PMC-Sierra, Inc. (aacraid@pmc-sierra.com)
  10  *
  11  * This program is free software; you can redistribute it and/or modify
  12  * it under the terms of the GNU General Public License as published by
  13  * the Free Software Foundation; either version 2, or (at your option)
  14  * any later version.
  15  *
  16  * This program is distributed in the hope that it will be useful,
  17  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  18  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  19  * GNU General Public License for more details.
  20  *
  21  * You should have received a copy of the GNU General Public License
  22  * along with this program; see the file COPYING.  If not, write to
  23  * the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
  24  *
  25  */
  26
  27 #include <linux/kernel.h>
  28 #include <linux/init.h>
  29 #include <linux/types.h>
  30 #include <linux/pci.h>
  31 #include <linux/spinlock.h>
  32 #include <linux/slab.h>
  33 #include <linux/completion.h>
  34 #include <linux/blkdev.h>
  35 #include <asm/uaccess.h>
  36 #include <linux/highmem.h> /* For flush_kernel_dcache_page */
  37 #include <linux/module.h>
  38
  39 #include <scsi/scsi.h>
  40 #include <scsi/scsi_cmnd.h>
  41 #include <scsi/scsi_device.h>
  42 #include <scsi/scsi_host.h>
  43
  44 #include "aacraid.h"
  45
  46 /* values for inqd_pdt: Peripheral device type in plain English */
  47 #define INQD_PDT_DA     0x00    /* Direct-access (DISK) device */
  48 #define INQD_PDT_PROC   0x03    /* Processor device */
  49 #define INQD_PDT_CHNGR  0x08    /* Changer (jukebox, scsi2) */
  50 #define INQD_PDT_COMM   0x09    /* Communication device (scsi2) */
  51 #define INQD_PDT_NOLUN2 0x1f    /* Unknown Device (scsi2) */
  52 #define INQD_PDT_NOLUN  0x7f    /* Logical Unit Not Present */
  53
  54 #define INQD_PDT_DMASK  0x1F    /* Peripheral Device Type Mask */
  55 #define INQD_PDT_QMASK  0xE0    /* Peripheral Device Qualifer Mask */
  56
  57 /*
  58  *      Sense codes
  59  */
  60
  61 #define SENCODE_NO_SENSE                        0x00
  62 #define SENCODE_END_OF_DATA                     0x00
  63 #define SENCODE_BECOMING_READY                  0x04
  64 #define SENCODE_INIT_CMD_REQUIRED               0x04
  65 #define SENCODE_PARAM_LIST_LENGTH_ERROR         0x1A
  66 #define SENCODE_INVALID_COMMAND                 0x20
  67 #define SENCODE_LBA_OUT_OF_RANGE                0x21
  68 #define SENCODE_INVALID_CDB_FIELD               0x24
  69 #define SENCODE_LUN_NOT_SUPPORTED               0x25
  70 #define SENCODE_INVALID_PARAM_FIELD             0x26
  71 #define SENCODE_PARAM_NOT_SUPPORTED             0x26
  72 #define SENCODE_PARAM_VALUE_INVALID             0x26
  73 #define SENCODE_RESET_OCCURRED                  0x29
  74 #define SENCODE_LUN_NOT_SELF_CONFIGURED_YET     0x3E
  75 #define SENCODE_INQUIRY_DATA_CHANGED            0x3F
  76 #define SENCODE_SAVING_PARAMS_NOT_SUPPORTED     0x39
  77 #define SENCODE_DIAGNOSTIC_FAILURE              0x40
  78 #define SENCODE_INTERNAL_TARGET_FAILURE         0x44
  79 #define SENCODE_INVALID_MESSAGE_ERROR           0x49
  80 #define SENCODE_LUN_FAILED_SELF_CONFIG          0x4c
  81 #define SENCODE_OVERLAPPED_COMMAND              0x4E
  82
  83 /*
  84  *      Additional sense codes
  85  */
  86
  87 #define ASENCODE_NO_SENSE                       0x00
  88 #define ASENCODE_END_OF_DATA                    0x05
  89 #define ASENCODE_BECOMING_READY                 0x01
  90 #define ASENCODE_INIT_CMD_REQUIRED              0x02
  91 #define ASENCODE_PARAM_LIST_LENGTH_ERROR        0x00
  92 #define ASENCODE_INVALID_COMMAND                0x00
  93 #define ASENCODE_LBA_OUT_OF_RANGE               0x00
  94 #define ASENCODE_INVALID_CDB_FIELD              0x00
  95 #define ASENCODE_LUN_NOT_SUPPORTED              0x00
  96 #define ASENCODE_INVALID_PARAM_FIELD            0x00
  97 #define ASENCODE_PARAM_NOT_SUPPORTED            0x01
  98 #define ASENCODE_PARAM_VALUE_INVALID            0x02
  99 #define ASENCODE_RESET_OCCURRED                 0x00
 100 #define ASENCODE_LUN_NOT_SELF_CONFIGURED_YET    0x00
 101 #define ASENCODE_INQUIRY_DATA_CHANGED           0x03
 102 #define ASENCODE_SAVING_PARAMS_NOT_SUPPORTED    0x00
 103 #define ASENCODE_DIAGNOSTIC_FAILURE             0x80
 104 #define ASENCODE_INTERNAL_TARGET_FAILURE        0x00
 105 #define ASENCODE_INVALID_MESSAGE_ERROR          0x00
 106 #define ASENCODE_LUN_FAILED_SELF_CONFIG         0x00
 107 #define ASENCODE_OVERLAPPED_COMMAND             0x00
 108
 109 #define BYTE0(x) (unsigned char)(x)
 110 #define BYTE1(x) (unsigned char)((x) >> 8)
 111 #define BYTE2(x) (unsigned char)((x) >> 16)
 112 #define BYTE3(x) (unsigned char)((x) >> 24)
 113
 114 /*------------------------------------------------------------------------------
 115  *              S T R U C T S / T Y P E D E F S
 116  *----------------------------------------------------------------------------*/
 117 /* SCSI inquiry data */
 118 struct inquiry_data {
 119         u8 inqd_pdt;    /* Peripheral qualifier | Peripheral Device Type */
 120         u8 inqd_dtq;    /* RMB | Device Type Qualifier */
 121         u8 inqd_ver;    /* ISO version | ECMA version | ANSI-approved version */
 122         u8 inqd_rdf;    /* AENC | TrmIOP | Response data format */
 123         u8 inqd_len;    /* Additional length (n-4) */
 124         u8 inqd_pad1[2];/* Reserved - must be zero */
 125         u8 inqd_pad2;   /* RelAdr | WBus32 | WBus16 |  Sync  | Linked |Reserved| CmdQue | SftRe */
 126         u8 inqd_vid[8]; /* Vendor ID */
 127         u8 inqd_pid[16];/* Product ID */
 128         u8 inqd_prl[4]; /* Product Revision Level */
 129 };
 130
 131 /*
 132  *              M O D U L E   G L O B A L S
 133  */
 134
 135 static unsigned long aac_build_sg(struct scsi_cmnd* scsicmd, struct sgmap* sgmap);
 136 static unsigned long aac_build_sg64(struct scsi_cmnd* scsicmd, struct sgmap64* psg);
 137 static unsigned long aac_build_sgraw(struct scsi_cmnd* scsicmd, struct sgmapraw* psg);
 138 static int aac_send_srb_fib(struct scsi_cmnd* scsicmd);
 139 #ifdef AAC_DETAILED_STATUS_INFO
 140 static char *aac_get_status_string(u32 status);
 141 #endif
 142
 143 /*
 144  *      Non dasd selection is handled entirely in aachba now
 145  */
 146
 147 static int nondasd = -1;
 148 static int aac_cache = 2;       /* WCE=0 to avoid performance problems */
 149 static int dacmode = -1;
 150 int aac_msi;
 151 int aac_commit = -1;
 152 int startup_timeout = 180;
 153 int aif_timeout = 120;
 154 int aac_sync_mode;  /* Only Sync. transfer - disabled */
 155
 156 module_param(aac_sync_mode, int, S_IRUGO|S_IWUSR);
 157 MODULE_PARM_DESC(aac_sync_mode, "Force sync. transfer mode"
 158         " 0=off, 1=on");
 159 module_param(nondasd, int, S_IRUGO|S_IWUSR);
 160 MODULE_PARM_DESC(nondasd, "Control scanning of hba for nondasd devices."
 161         " 0=off, 1=on");
 162 module_param_named(cache, aac_cache, int, S_IRUGO|S_IWUSR);
 163 MODULE_PARM_DESC(cache, "Disable Queue Flush commands:\n"
 164         "\tbit 0 - Disable FUA in WRITE SCSI commands\n"
 165         "\tbit 1 - Disable SYNCHRONIZE_CACHE SCSI command\n"
 166         "\tbit 2 - Disable only if Battery is protecting Cache");
 167 module_param(dacmode, int, S_IRUGO|S_IWUSR);
 168 MODULE_PARM_DESC(dacmode, "Control whether dma addressing is using 64 bit DAC."
 169         " 0=off, 1=on");
 170 module_param_named(commit, aac_commit, int, S_IRUGO|S_IWUSR);
 171 MODULE_PARM_DESC(commit, "Control whether a COMMIT_CONFIG is issued to the"
 172         " adapter for foreign arrays.\n"
 173         "This is typically needed in systems that do not have a BIOS."
 174         " 0=off, 1=on");
 175 module_param_named(msi, aac_msi, int, S_IRUGO|S_IWUSR);
 176 MODULE_PARM_DESC(msi, "IRQ handling."
 177         " 0=PIC(default), 1=MSI, 2=MSI-X(unsupported, uses MSI)");
 178 module_param(startup_timeout, int, S_IRUGO|S_IWUSR);
 179 MODULE_PARM_DESC(startup_timeout, "The duration of time in seconds to wait for"
 180         " adapter to have it's kernel up and\n"
 181         "running. This is typically adjusted for large systems that do not"
 182         " have a BIOS.");
 183 module_param(aif_timeout, int, S_IRUGO|S_IWUSR);
 184 MODULE_PARM_DESC(aif_timeout, "The duration of time in seconds to wait for"
 185         " applications to pick up AIFs before\n"
 186         "deregistering them. This is typically adjusted for heavily burdened"
 187         " systems.");
 188
 189 int numacb = -1;
 190 module_param(numacb, int, S_IRUGO|S_IWUSR);
 191 MODULE_PARM_DESC(numacb, "Request a limit to the number of adapter control"
 192         " blocks (FIB) allocated. Valid values are 512 and down. Default is"
 193         " to use suggestion from Firmware.");
 194
 195 int acbsize = -1;
 196 module_param(acbsize, int, S_IRUGO|S_IWUSR);
 197 MODULE_PARM_DESC(acbsize, "Request a specific adapter control block (FIB)"
 198         " size. Valid values are 512, 2048, 4096 and 8192. Default is to use"
 199         " suggestion from Firmware.");
 200
 201 int update_interval = 30 * 60;
 202 module_param(update_interval, int, S_IRUGO|S_IWUSR);
 203 MODULE_PARM_DESC(update_interval, "Interval in seconds between time sync"
 204         " updates issued to adapter.");
 205
 206 int check_interval = 24 * 60 * 60;
 207 module_param(check_interval, int, S_IRUGO|S_IWUSR);
 208 MODULE_PARM_DESC(check_interval, "Interval in seconds between adapter health"
 209         " checks.");
 210
 211 int aac_check_reset = 1;
 212 module_param_named(check_reset, aac_check_reset, int, S_IRUGO|S_IWUSR);
 213 MODULE_PARM_DESC(check_reset, "If adapter fails health check, reset the"
 214         " adapter. a value of -1 forces the reset to adapters programmed to"
 215         " ignore it.");
 216
 217 int expose_physicals = -1;
 218 module_param(expose_physicals, int, S_IRUGO|S_IWUSR);
 219 MODULE_PARM_DESC(expose_physicals, "Expose physical components of the arrays."
 220         " -1=protect 0=off, 1=on");
 221
 222 int aac_reset_devices;
 223 module_param_named(reset_devices, aac_reset_devices, int, S_IRUGO|S_IWUSR);
 224 MODULE_PARM_DESC(reset_devices, "Force an adapter reset at initialization.");
 225
 226 int aac_wwn = 1;
 227 module_param_named(wwn, aac_wwn, int, S_IRUGO|S_IWUSR);
 228 MODULE_PARM_DESC(wwn, "Select a WWN type for the arrays:\n"
 229         "\t0 - Disable\n"
 230         "\t1 - Array Meta Data Signature (default)\n"
 231         "\t2 - Adapter Serial Number");
 232
 233
 234 static inline int aac_valid_context(struct scsi_cmnd *scsicmd,
 235                 struct fib *fibptr) {
 236         struct scsi_device *device;
 237
 238         if (unlikely(!scsicmd || !scsicmd->scsi_done)) {
 239                 dprintk((KERN_WARNING "aac_valid_context: scsi command corrupt\n"));
 240                 aac_fib_complete(fibptr);
 241                 aac_fib_free(fibptr);
 242                 return 0;
 243         }
 244         scsicmd->SCp.phase = AAC_OWNER_MIDLEVEL;
 245         device = scsicmd->device;
 246         if (unlikely(!device || !scsi_device_online(device))) {
 247                 dprintk((KERN_WARNING "aac_valid_context: scsi device corrupt\n"));
 248                 aac_fib_complete(fibptr);
 249                 aac_fib_free(fibptr);
 250                 return 0;
 251         }
 252         return 1;
 253 }
 254
 255 /**
 256  *      aac_get_config_status   -       check the adapter configuration
 257  *      @common: adapter to query
 258  *
 259  *      Query config status, and commit the configuration if needed.
 260  */
 261 int aac_get_config_status(struct aac_dev *dev, int commit_flag)
 262 {
 263         int status = 0;
 264         struct fib * fibptr;
 265
 266         if (!(fibptr = aac_fib_alloc(dev)))
 267                 return -ENOMEM;
 268
 269         aac_fib_init(fibptr);
 270         {
 271                 struct aac_get_config_status *dinfo;
 272                 dinfo = (struct aac_get_config_status *) fib_data(fibptr);
 273
 274                 dinfo->command = cpu_to_le32(VM_ContainerConfig);
 275                 dinfo->type = cpu_to_le32(CT_GET_CONFIG_STATUS);
 276                 dinfo->count = cpu_to_le32(sizeof(((struct aac_get_config_status_resp *)NULL)->data));
 277         }
 278
 279         status = aac_fib_send(ContainerCommand,
 280                             fibptr,
 281                             sizeof (struct aac_get_config_status),
 282                             FsaNormal,
 283                             1, 1,
 284                             NULL, NULL);
 285         if (status < 0) {
 286                 printk(KERN_WARNING "aac_get_config_status: SendFIB failed.\n");
 287         } else {
 288                 struct aac_get_config_status_resp *reply
 289                   = (struct aac_get_config_status_resp *) fib_data(fibptr);
 290                 dprintk((KERN_WARNING
 291                   "aac_get_config_status: response=%d status=%d action=%d\n",
 292                   le32_to_cpu(reply->response),
 293                   le32_to_cpu(reply->status),
 294                   le32_to_cpu(reply->data.action)));
 295                 if ((le32_to_cpu(reply->response) != ST_OK) ||
 296                      (le32_to_cpu(reply->status) != CT_OK) ||
 297                      (le32_to_cpu(reply->data.action) > CFACT_PAUSE)) {
 298                         printk(KERN_WARNING "aac_get_config_status: Will not issue the Commit Configuration\n");
 299                         status = -EINVAL;
 300                 }
 301         }
 302         /* Do not set XferState to zero unless receives a response from F/W */
 303         if (status >= 0)
 304                 aac_fib_complete(fibptr);
 305
 306         /* Send a CT_COMMIT_CONFIG to enable discovery of devices */
 307         if (status >= 0) {
 308                 if ((aac_commit == 1) || commit_flag) {
 309                         struct aac_commit_config * dinfo;
 310                         aac_fib_init(fibptr);
 311                         dinfo = (struct aac_commit_config *) fib_data(fibptr);
 312
 313                         dinfo->command = cpu_to_le32(VM_ContainerConfig);
 314                         dinfo->type = cpu_to_le32(CT_COMMIT_CONFIG);
 315
 316                         status = aac_fib_send(ContainerCommand,
 317                                     fibptr,
 318                                     sizeof (struct aac_commit_config),
 319                                     FsaNormal,
 320                                     1, 1,
 321                                     NULL, NULL);
 322                         /* Do not set XferState to zero unless
 323                          * receives a response from F/W */
 324                         if (status >= 0)
 325                                 aac_fib_complete(fibptr);
 326                 } else if (aac_commit == 0) {
 327                         printk(KERN_WARNING
 328                           "aac_get_config_status: Foreign device configurations are being ignored\n");
 329                 }
 330         }
 331         /* FIB should be freed only after getting the response from the F/W */
 332         if (status != -ERESTARTSYS)
 333                 aac_fib_free(fibptr);
 334         return status;
 335 }
 336
 337 static void aac_expose_phy_device(struct scsi_cmnd *scsicmd)
 338 {
 339         char inq_data;
 340         scsi_sg_copy_to_buffer(scsicmd,  &inq_data, sizeof(inq_data));
 341         if ((inq_data & 0x20) && (inq_data & 0x1f) == TYPE_DISK) {
 342                 inq_data &= 0xdf;
 343                 scsi_sg_copy_from_buffer(scsicmd, &inq_data, sizeof(inq_data));
 344         }
 345 }
 346
 347 /**
 348  *      aac_get_containers      -       list containers
 349  *      @common: adapter to probe
 350  *
 351  *      Make a list of all containers on this controller
 352  */
 353 int aac_get_containers(struct aac_dev *dev)
 354 {
 355         struct fsa_dev_info *fsa_dev_ptr;
 356         u32 index;
 357         int status = 0;
 358         struct fib * fibptr;
 359         struct aac_get_container_count *dinfo;
 360         struct aac_get_container_count_resp *dresp;
 361         int maximum_num_containers = MAXIMUM_NUM_CONTAINERS;
 362
 363         if (!(fibptr = aac_fib_alloc(dev)))
 364                 return -ENOMEM;
 365
 366         aac_fib_init(fibptr);
 367         dinfo = (struct aac_get_container_count *) fib_data(fibptr);
 368         dinfo->command = cpu_to_le32(VM_ContainerConfig);
 369         dinfo->type = cpu_to_le32(CT_GET_CONTAINER_COUNT);
 370
 371         status = aac_fib_send(ContainerCommand,
 372                     fibptr,
 373                     sizeof (struct aac_get_container_count),
 374                     FsaNormal,
 375                     1, 1,
 376                     NULL, NULL);
 377         if (status >= 0) {
 378                 dresp = (struct aac_get_container_count_resp *)fib_data(fibptr);
 379                 maximum_num_containers = le32_to_cpu(dresp->ContainerSwitchEntries);
 380                 aac_fib_complete(fibptr);
 381         }
 382         /* FIB should be freed only after getting the response from the F/W */
 383         if (status != -ERESTARTSYS)
 384                 aac_fib_free(fibptr);
 385
 386         if (maximum_num_containers < MAXIMUM_NUM_CONTAINERS)
 387                 maximum_num_containers = MAXIMUM_NUM_CONTAINERS;
 388         fsa_dev_ptr = kzalloc(sizeof(*fsa_dev_ptr) * maximum_num_containers,
 389                         GFP_KERNEL);
 390         if (!fsa_dev_ptr)
 391                 return -ENOMEM;
 392
 393         dev->fsa_dev = fsa_dev_ptr;
 394         dev->maximum_num_containers = maximum_num_containers;
 395
 396         for (index = 0; index < dev->maximum_num_containers; ) {
 397                 fsa_dev_ptr[index].devname[0] = '\0';
 398
 399                 status = aac_probe_container(dev, index);
 400
 401                 if (status < 0) {
 402                         printk(KERN_WARNING "aac_get_containers: SendFIB failed.\n");
 403                         break;
 404                 }
 405
 406                 /*
 407                  *      If there are no more containers, then stop asking.
 408                  */
 409                 if (++index >= status)
 410                         break;
 411         }
 412         return status;
 413 }
 414
 415 static void get_container_name_callback(void *context, struct fib * fibptr)
 416 {
 417         struct aac_get_name_resp * get_name_reply;
 418         struct scsi_cmnd * scsicmd;
 419
 420         scsicmd = (struct scsi_cmnd *) context;
 421
 422         if (!aac_valid_context(scsicmd, fibptr))
 423                 return;
 424
 425         dprintk((KERN_DEBUG "get_container_name_callback[cpu %d]: t = %ld.\n", smp_processor_id(), jiffies));
 426         BUG_ON(fibptr == NULL);
 427
 428         get_name_reply = (struct aac_get_name_resp *) fib_data(fibptr);
 429         /* Failure is irrelevant, using default value instead */
 430         if ((le32_to_cpu(get_name_reply->status) == CT_OK)
 431          && (get_name_reply->data[0] != '\0')) {
 432                 char *sp = get_name_reply->data;
 433                 sp[sizeof(((struct aac_get_name_resp *)NULL)->data)-1] = '\0';
 434                 while (*sp == ' ')
 435                         ++sp;
 436                 if (*sp) {
 437                         struct inquiry_data inq;
 438                         char d[sizeof(((struct inquiry_data *)NULL)->inqd_pid)];
 439                         int count = sizeof(d);
 440                         char *dp = d;
 441                         do {
 442                                 *dp++ = (*sp) ? *sp++ : ' ';
 443                         } while (--count > 0);
 444
 445                         scsi_sg_copy_to_buffer(scsicmd, &inq, sizeof(inq));
 446                         memcpy(inq.inqd_pid, d, sizeof(d));
 447                         scsi_sg_copy_from_buffer(scsicmd, &inq, sizeof(inq));
 448                 }
 449         }
 450
 451         scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_GOOD;
 452
 453         aac_fib_complete(fibptr);
 454         aac_fib_free(fibptr);
 455         scsicmd->scsi_done(scsicmd);
 456 }
 457
 458 /**
 459  *      aac_get_container_name  -       get container name, none blocking.
 460  */
 461 static int aac_get_container_name(struct scsi_cmnd * scsicmd)
 462 {
 463         int status;
 464         struct aac_get_name *dinfo;
 465         struct fib * cmd_fibcontext;
 466         struct aac_dev * dev;
 467
 468         dev = (struct aac_dev *)scsicmd->device->host->hostdata;
 469
 470         if (!(cmd_fibcontext = aac_fib_alloc(dev)))
 471                 return -ENOMEM;
 472
 473         aac_fib_init(cmd_fibcontext);
 474         dinfo = (struct aac_get_name *) fib_data(cmd_fibcontext);
 475
 476         dinfo->command = cpu_to_le32(VM_ContainerConfig);
 477         dinfo->type = cpu_to_le32(CT_READ_NAME);
 478         dinfo->cid = cpu_to_le32(scmd_id(scsicmd));
 479         dinfo->count = cpu_to_le32(sizeof(((struct aac_get_name_resp *)NULL)->data));
 480
 481         status = aac_fib_send(ContainerCommand,
 482                   cmd_fibcontext,
 483                   sizeof (struct aac_get_name),
 484                   FsaNormal,
 485                   0, 1,
 486                   (fib_callback)get_container_name_callback,
 487                   (void *) scsicmd);
 488
 489         /*
 490          *      Check that the command queued to the controller
 491          */
 492         if (status == -EINPROGRESS) {
 493                 scsicmd->SCp.phase = AAC_OWNER_FIRMWARE;
 494                 return 0;
 495         }
 496
 497         printk(KERN_WARNING "aac_get_container_name: aac_fib_send failed with status: %d.\n", status);
 498         aac_fib_complete(cmd_fibcontext);
 499         aac_fib_free(cmd_fibcontext);
 500         return -1;
 501 }
 502
 503 static int aac_probe_container_callback2(struct scsi_cmnd * scsicmd)
 504 {
 505         struct fsa_dev_info *fsa_dev_ptr = ((struct aac_dev *)(scsicmd->device->host->hostdata))->fsa_dev;
 506
 507         if ((fsa_dev_ptr[scmd_id(scsicmd)].valid & 1))
 508                 return aac_scsi_cmd(scsicmd);
 509
 510         scsicmd->result = DID_NO_CONNECT << 16;
 511         scsicmd->scsi_done(scsicmd);
 512         return 0;
 513 }
 514
 515 static void _aac_probe_container2(void * context, struct fib * fibptr)
 516 {
 517         struct fsa_dev_info *fsa_dev_ptr;
 518         int (*callback)(struct scsi_cmnd *);
 519         struct scsi_cmnd * scsicmd = (struct scsi_cmnd *)context;
 520
 521
 522         if (!aac_valid_context(scsicmd, fibptr))
 523                 return;
 524
 525         scsicmd->SCp.Status = 0;
 526         fsa_dev_ptr = fibptr->dev->fsa_dev;
 527         if (fsa_dev_ptr) {
 528                 struct aac_mount * dresp = (struct aac_mount *) fib_data(fibptr);
 529                 fsa_dev_ptr += scmd_id(scsicmd);
 530
 531                 if ((le32_to_cpu(dresp->status) == ST_OK) &&
 532                     (le32_to_cpu(dresp->mnt[0].vol) != CT_NONE) &&
 533                     (le32_to_cpu(dresp->mnt[0].state) != FSCS_HIDDEN)) {
 534                         fsa_dev_ptr->valid = 1;
 535                         /* sense_key holds the current state of the spin-up */
 536                         if (dresp->mnt[0].state & cpu_to_le32(FSCS_NOT_READY))
 537                                 fsa_dev_ptr->sense_data.sense_key = NOT_READY;
 538                         else if (fsa_dev_ptr->sense_data.sense_key == NOT_READY)
 539                                 fsa_dev_ptr->sense_data.sense_key = NO_SENSE;
 540                         fsa_dev_ptr->type = le32_to_cpu(dresp->mnt[0].vol);
 541                         fsa_dev_ptr->size
 542                           = ((u64)le32_to_cpu(dresp->mnt[0].capacity)) +
 543                             (((u64)le32_to_cpu(dresp->mnt[0].capacityhigh)) << 32);
 544                         fsa_dev_ptr->ro = ((le32_to_cpu(dresp->mnt[0].state) & FSCS_READONLY) != 0);
 545                 }
 546                 if ((fsa_dev_ptr->valid & 1) == 0)
 547                         fsa_dev_ptr->valid = 0;
 548                 scsicmd->SCp.Status = le32_to_cpu(dresp->count);
 549         }
 550         aac_fib_complete(fibptr);
 551         aac_fib_free(fibptr);
 552         callback = (int (*)(struct scsi_cmnd *))(scsicmd->SCp.ptr);
 553         scsicmd->SCp.ptr = NULL;
 554         (*callback)(scsicmd);
 555         return;
 556 }
 557
 558 static void _aac_probe_container1(void * context, struct fib * fibptr)
 559 {
 560         struct scsi_cmnd * scsicmd;
 561         struct aac_mount * dresp;
 562         struct aac_query_mount *dinfo;
 563         int status;
 564
 565         dresp = (struct aac_mount *) fib_data(fibptr);
 566         dresp->mnt[0].capacityhigh = 0;
 567         if ((le32_to_cpu(dresp->status) != ST_OK) ||
 568             (le32_to_cpu(dresp->mnt[0].vol) != CT_NONE)) {
 569                 _aac_probe_container2(context, fibptr);
 570                 return;
 571         }
 572         scsicmd = (struct scsi_cmnd *) context;
 573
 574         if (!aac_valid_context(scsicmd, fibptr))
 575                 return;
 576
 577         aac_fib_init(fibptr);
 578
 579         dinfo = (struct aac_query_mount *)fib_data(fibptr);
 580
 581         dinfo->command = cpu_to_le32(VM_NameServe64);
 582         dinfo->count = cpu_to_le32(scmd_id(scsicmd));
 583         dinfo->type = cpu_to_le32(FT_FILESYS);
 584
 585         status = aac_fib_send(ContainerCommand,
 586                           fibptr,
 587                           sizeof(struct aac_query_mount),
 588                           FsaNormal,
 589                           0, 1,
 590                           _aac_probe_container2,
 591                           (void *) scsicmd);
 592         /*
 593          *      Check that the command queued to the controller
 594          */
 595         if (status == -EINPROGRESS)
 596                 scsicmd->SCp.phase = AAC_OWNER_FIRMWARE;
 597         else if (status < 0) {
 598                 /* Inherit results from VM_NameServe, if any */
 599                 dresp->status = cpu_to_le32(ST_OK);
 600                 _aac_probe_container2(context, fibptr);
 601         }
 602 }
 603
 604 static int _aac_probe_container(struct scsi_cmnd * scsicmd, int (*callback)(struct scsi_cmnd *))
 605 {
 606         struct fib * fibptr;
 607         int status = -ENOMEM;
 608
 609         if ((fibptr = aac_fib_alloc((struct aac_dev *)scsicmd->device->host->hostdata))) {
 610                 struct aac_query_mount *dinfo;
 611
 612                 aac_fib_init(fibptr);
 613
 614                 dinfo = (struct aac_query_mount *)fib_data(fibptr);
 615
 616                 dinfo->command = cpu_to_le32(VM_NameServe);
 617                 dinfo->count = cpu_to_le32(scmd_id(scsicmd));
 618                 dinfo->type = cpu_to_le32(FT_FILESYS);
 619                 scsicmd->SCp.ptr = (char *)callback;
 620
 621                 status = aac_fib_send(ContainerCommand,
 622                           fibptr,
 623                           sizeof(struct aac_query_mount),
 624                           FsaNormal,
 625                           0, 1,
 626                           _aac_probe_container1,
 627                           (void *) scsicmd);
 628                 /*
 629                  *      Check that the command queued to the controller
 630                  */
 631                 if (status == -EINPROGRESS) {
 632                         scsicmd->SCp.phase = AAC_OWNER_FIRMWARE;
 633                         return 0;
 634                 }
 635                 if (status < 0) {
 636                         scsicmd->SCp.ptr = NULL;
 637                         aac_fib_complete(fibptr);
 638                         aac_fib_free(fibptr);
 639                 }
 640         }
 641         if (status < 0) {
 642                 struct fsa_dev_info *fsa_dev_ptr = ((struct aac_dev *)(scsicmd->device->host->hostdata))->fsa_dev;
 643                 if (fsa_dev_ptr) {
 644                         fsa_dev_ptr += scmd_id(scsicmd);
 645                         if ((fsa_dev_ptr->valid & 1) == 0) {
 646                                 fsa_dev_ptr->valid = 0;
 647                                 return (*callback)(scsicmd);
 648                         }
 649                 }
 650         }
 651         return status;
 652 }
 653
 654 /**
 655  *      aac_probe_container             -       query a logical volume
 656  *      @dev: device to query
 657  *      @cid: container identifier
 658  *
 659  *      Queries the controller about the given volume. The volume information
 660  *      is updated in the struct fsa_dev_info structure rather than returned.
 661  */
 662 static int aac_probe_container_callback1(struct scsi_cmnd * scsicmd)
 663 {
 664         scsicmd->device = NULL;
 665         return 0;
 666 }
 667
 668 int aac_probe_container(struct aac_dev *dev, int cid)
 669 {
 670         struct scsi_cmnd *scsicmd = kmalloc(sizeof(*scsicmd), GFP_KERNEL);
 671         struct scsi_device *scsidev = kmalloc(sizeof(*scsidev), GFP_KERNEL);
 672         int status;
 673
 674         if (!scsicmd || !scsidev) {
 675                 kfree(scsicmd);
 676                 kfree(scsidev);
 677                 return -ENOMEM;
 678         }
 679         scsicmd->list.next = NULL;
 680         scsicmd->scsi_done = (void (*)(struct scsi_cmnd*))aac_probe_container_callback1;
 681
 682         scsicmd->device = scsidev;
 683         scsidev->sdev_state = 0;
 684         scsidev->id = cid;
 685         scsidev->host = dev->scsi_host_ptr;
 686
 687         if (_aac_probe_container(scsicmd, aac_probe_container_callback1) == 0)
 688                 while (scsicmd->device == scsidev)
 689                         schedule();
 690         kfree(scsidev);
 691         status = scsicmd->SCp.Status;
 692         kfree(scsicmd);
 693         return status;
 694 }
 695
 696 /* Local Structure to set SCSI inquiry data strings */
 697 struct scsi_inq {
 698         char vid[8];         /* Vendor ID */
 699         char pid[16];        /* Product ID */
 700         char prl[4];         /* Product Revision Level */
 701 };
 702
 703 /**
 704  *      InqStrCopy      -       string merge
 705  *      @a:     string to copy from
 706  *      @b:     string to copy to
 707  *
 708  *      Copy a String from one location to another
 709  *      without copying \0
 710  */
 711
 712 static void inqstrcpy(char *a, char *b)
 713 {
 714
 715         while (*a != (char)0)
 716                 *b++ = *a++;
 717 }
 718
 719 static char *container_types[] = {
 720         "None",
 721         "Volume",
 722         "Mirror",
 723         "Stripe",
 724         "RAID5",
 725         "SSRW",
 726         "SSRO",
 727         "Morph",
 728         "Legacy",
 729         "RAID4",
 730         "RAID10",
 731         "RAID00",
 732         "V-MIRRORS",
 733         "PSEUDO R4",
 734         "RAID50",
 735         "RAID5D",
 736         "RAID5D0",
 737         "RAID1E",
 738         "RAID6",
 739         "RAID60",
 740         "Unknown"
 741 };
 742
 743 char * get_container_type(unsigned tindex)
 744 {
 745         if (tindex >= ARRAY_SIZE(container_types))
 746                 tindex = ARRAY_SIZE(container_types) - 1;
 747         return container_types[tindex];
 748 }
 749
 750 /* Function: setinqstr
 751  *
 752  * Arguments: [1] pointer to void [1] int
 753  *
 754  * Purpose: Sets SCSI inquiry data strings for vendor, product
 755  * and revision level. Allows strings to be set in platform dependent
 756  * files instead of in OS dependent driver source.
 757  */
 758
 759 static void setinqstr(struct aac_dev *dev, void *data, int tindex)
 760 {
 761         struct scsi_inq *str;
 762
 763         str = (struct scsi_inq *)(data); /* cast data to scsi inq block */
 764         memset(str, ' ', sizeof(*str));
 765
 766         if (dev->supplement_adapter_info.AdapterTypeText[0]) {
 767                 char * cp = dev->supplement_adapter_info.AdapterTypeText;
 768                 int c;
 769                 if ((cp[0] == 'A') && (cp[1] == 'O') && (cp[2] == 'C'))
 770                         inqstrcpy("SMC", str->vid);
 771                 else {
 772                         c = sizeof(str->vid);
 773                         while (*cp && *cp != ' ' && --c)
 774                                 ++cp;
 775                         c = *cp;
 776                         *cp = '\0';
 777                         inqstrcpy (dev->supplement_adapter_info.AdapterTypeText,
 778                                    str->vid);
 779                         *cp = c;
 780                         while (*cp && *cp != ' ')
 781                                 ++cp;
 782                 }
 783                 while (*cp == ' ')
 784                         ++cp;
 785                 /* last six chars reserved for vol type */
 786                 c = 0;
 787                 if (strlen(cp) > sizeof(str->pid)) {
 788                         c = cp[sizeof(str->pid)];
 789                         cp[sizeof(str->pid)] = '\0';
 790                 }
 791                 inqstrcpy (cp, str->pid);
 792                 if (c)
 793                         cp[sizeof(str->pid)] = c;
 794         } else {
 795                 struct aac_driver_ident *mp = aac_get_driver_ident(dev->cardtype);
 796
 797                 inqstrcpy (mp->vname, str->vid);
 798                 /* last six chars reserved for vol type */
 799                 inqstrcpy (mp->model, str->pid);
 800         }
 801
 802         if (tindex < ARRAY_SIZE(container_types)){
 803                 char *findit = str->pid;
 804
 805                 for ( ; *findit != ' '; findit++); /* walk till we find a space */
 806                 /* RAID is superfluous in the context of a RAID device */
 807                 if (memcmp(findit-4, "RAID", 4) == 0)
 808                         *(findit -= 4) = ' ';
 809                 if (((findit - str->pid) + strlen(container_types[tindex]))
 810                  < (sizeof(str->pid) + sizeof(str->prl)))
 811                         inqstrcpy (container_types[tindex], findit + 1);
 812         }
 813         inqstrcpy ("V1.0", str->prl);
 814 }
 815
 816 static void get_container_serial_callback(void *context, struct fib * fibptr)
 817 {
 818         struct aac_get_serial_resp * get_serial_reply;
 819         struct scsi_cmnd * scsicmd;
 820
 821         BUG_ON(fibptr == NULL);
 822
 823         scsicmd = (struct scsi_cmnd *) context;
 824         if (!aac_valid_context(scsicmd, fibptr))
 825                 return;
 826
 827         get_serial_reply = (struct aac_get_serial_resp *) fib_data(fibptr);
 828         /* Failure is irrelevant, using default value instead */
 829         if (le32_to_cpu(get_serial_reply->status) == CT_OK) {
 830                 char sp[13];
 831                 /* EVPD bit set */
 832                 sp[0] = INQD_PDT_DA;
 833                 sp[1] = scsicmd->cmnd[2];
 834                 sp[2] = 0;
 835                 sp[3] = snprintf(sp+4, sizeof(sp)-4, "%08X",
 836                   le32_to_cpu(get_serial_reply->uid));
 837                 scsi_sg_copy_from_buffer(scsicmd, sp, sizeof(sp));
 838         }
 839
 840         scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_GOOD;
 841
 842         aac_fib_complete(fibptr);
 843         aac_fib_free(fibptr);
 844         scsicmd->scsi_done(scsicmd);
 845 }
 846
 847 /**
 848  *      aac_get_container_serial - get container serial, none blocking.
 849  */
 850 static int aac_get_container_serial(struct scsi_cmnd * scsicmd)
 851 {
 852         int status;
 853         struct aac_get_serial *dinfo;
 854         struct fib * cmd_fibcontext;
 855         struct aac_dev * dev;
 856
 857         dev = (struct aac_dev *)scsicmd->device->host->hostdata;
 858
 859         if (!(cmd_fibcontext = aac_fib_alloc(dev)))
 860                 return -ENOMEM;
 861
 862         aac_fib_init(cmd_fibcontext);
 863         dinfo = (struct aac_get_serial *) fib_data(cmd_fibcontext);
 864
 865         dinfo->command = cpu_to_le32(VM_ContainerConfig);
 866         dinfo->type = cpu_to_le32(CT_CID_TO_32BITS_UID);
 867         dinfo->cid = cpu_to_le32(scmd_id(scsicmd));
 868
 869         status = aac_fib_send(ContainerCommand,
 870                   cmd_fibcontext,
 871                   sizeof (struct aac_get_serial),
 872                   FsaNormal,
 873                   0, 1,
 874                   (fib_callback) get_container_serial_callback,
 875                   (void *) scsicmd);
 876
 877         /*
 878          *      Check that the command queued to the controller
 879          */
 880         if (status == -EINPROGRESS) {
 881                 scsicmd->SCp.phase = AAC_OWNER_FIRMWARE;
 882                 return 0;
 883         }
 884
 885         printk(KERN_WARNING "aac_get_container_serial: aac_fib_send failed with status: %d.\n", status);
 886         aac_fib_complete(cmd_fibcontext);
 887         aac_fib_free(cmd_fibcontext);
 888         return -1;
 889 }
 890
 891 /* Function: setinqserial
 892  *
 893  * Arguments: [1] pointer to void [1] int
 894  *
 895  * Purpose: Sets SCSI Unit Serial number.
 896  *          This is a fake. We should read a proper
 897  *          serial number from the container. <SuSE>But
 898  *          without docs it's quite hard to do it :-)
 899  *          So this will have to do in the meantime.</SuSE>
 900  */
 901
 902 static int setinqserial(struct aac_dev *dev, void *data, int cid)
 903 {
 904         /*
 905          *      This breaks array migration.
 906          */
 907         return snprintf((char *)(data), sizeof(struct scsi_inq) - 4, "%08X%02X",
 908                         le32_to_cpu(dev->adapter_info.serial[0]), cid);
 909 }
 910
 911 static inline void set_sense(struct sense_data *sense_data, u8 sense_key,
 912         u8 sense_code, u8 a_sense_code, u8 bit_pointer, u16 field_pointer)
 913 {
 914         u8 *sense_buf = (u8 *)sense_data;
 915         /* Sense data valid, err code 70h */
 916         sense_buf[0] = 0x70; /* No info field */
 917         sense_buf[1] = 0;       /* Segment number, always zero */
 918
 919         sense_buf[2] = sense_key;       /* Sense key */
 920
 921         sense_buf[12] = sense_code;     /* Additional sense code */
 922         sense_buf[13] = a_sense_code;   /* Additional sense code qualifier */
 923
 924         if (sense_key == ILLEGAL_REQUEST) {
 925                 sense_buf[7] = 10;      /* Additional sense length */
 926
 927                 sense_buf[15] = bit_pointer;
 928                 /* Illegal parameter is in the parameter block */
 929                 if (sense_code == SENCODE_INVALID_CDB_FIELD)
 930                         sense_buf[15] |= 0xc0;/* Std sense key specific field */
 931                 /* Illegal parameter is in the CDB block */
 932                 sense_buf[16] = field_pointer >> 8;     /* MSB */
 933                 sense_buf[17] = field_pointer;          /* LSB */
 934         } else
 935                 sense_buf[7] = 6;       /* Additional sense length */
 936 }
 937
 938 static int aac_bounds_32(struct aac_dev * dev, struct scsi_cmnd * cmd, u64 lba)
 939 {
 940         if (lba & 0xffffffff00000000LL) {
 941                 int cid = scmd_id(cmd);
 942                 dprintk((KERN_DEBUG "aacraid: Illegal lba\n"));
 943                 cmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 |
 944                         SAM_STAT_CHECK_CONDITION;
 945                 set_sense(&dev->fsa_dev[cid].sense_data,
 946                   HARDWARE_ERROR, SENCODE_INTERNAL_TARGET_FAILURE,
 947                   ASENCODE_INTERNAL_TARGET_FAILURE, 0, 0);
 948                 memcpy(cmd->sense_buffer, &dev->fsa_dev[cid].sense_data,
 949                        min_t(size_t, sizeof(dev->fsa_dev[cid].sense_data),
 950                              SCSI_SENSE_BUFFERSIZE));
 951                 cmd->scsi_done(cmd);
 952                 return 1;
 953         }
 954         return 0;
 955 }
 956
 957 static int aac_bounds_64(struct aac_dev * dev, struct scsi_cmnd * cmd, u64 lba)
 958 {
 959         return 0;
 960 }
 961
 962 static void io_callback(void *context, struct fib * fibptr);
 963
 964 static int aac_read_raw_io(struct fib * fib, struct scsi_cmnd * cmd, u64 lba, u32 count)
 965 {
 966         u16 fibsize;
 967         struct aac_raw_io *readcmd;
 968         aac_fib_init(fib);
 969         readcmd = (struct aac_raw_io *) fib_data(fib);
 970         readcmd->block[0] = cpu_to_le32((u32)(lba&0xffffffff));
 971         readcmd->block[1] = cpu_to_le32((u32)((lba&0xffffffff00000000LL)>>32));
 972         readcmd->count = cpu_to_le32(count<<9);
 973         readcmd->cid = cpu_to_le16(scmd_id(cmd));
 974         readcmd->flags = cpu_to_le16(IO_TYPE_READ);
 975         readcmd->bpTotal = 0;
 976         readcmd->bpComplete = 0;
 977
 978         aac_build_sgraw(cmd, &readcmd->sg);
 979         fibsize = sizeof(struct aac_raw_io) + ((le32_to_cpu(readcmd->sg.count) - 1) * sizeof (struct sgentryraw));
 980         BUG_ON(fibsize > (fib->dev->max_fib_size - sizeof(struct aac_fibhdr)));
 981         /*
 982          *      Now send the Fib to the adapter
 983          */
 984         return aac_fib_send(ContainerRawIo,
 985                           fib,
 986                           fibsize,
 987                           FsaNormal,
 988                           0, 1,
 989                           (fib_callback) io_callback,
 990                           (void *) cmd);
 991 }
 992
 993 static int aac_read_block64(struct fib * fib, struct scsi_cmnd * cmd, u64 lba, u32 count)
 994 {
 995         u16 fibsize;
 996         struct aac_read64 *readcmd;
 997         aac_fib_init(fib);
 998         readcmd = (struct aac_read64 *) fib_data(fib);
 999         readcmd->command = cpu_to_le32(VM_CtHostRead64);
1000         readcmd->cid = cpu_to_le16(scmd_id(cmd));
1001         readcmd->sector_count = cpu_to_le16(count);
1002         readcmd->block = cpu_to_le32((u32)(lba&0xffffffff));
1003         readcmd->pad   = 0;
1004         readcmd->flags = 0;
1005
1006         aac_build_sg64(cmd, &readcmd->sg);
1007         fibsize = sizeof(struct aac_read64) +
1008                 ((le32_to_cpu(readcmd->sg.count) - 1) *
1009                  sizeof (struct sgentry64));
1010         BUG_ON (fibsize > (fib->dev->max_fib_size -
1011                                 sizeof(struct aac_fibhdr)));
1012         /*
1013          *      Now send the Fib to the adapter
1014          */
1015         return aac_fib_send(ContainerCommand64,
1016                           fib,
1017                           fibsize,
1018                           FsaNormal,
1019                           0, 1,
1020                           (fib_callback) io_callback,
1021                           (void *) cmd);
1022 }
1023
1024 static int aac_read_block(struct fib * fib, struct scsi_cmnd * cmd, u64 lba, u32 count)
1025 {
1026         u16 fibsize;
1027         struct aac_read *readcmd;
1028         aac_fib_init(fib);
1029         readcmd = (struct aac_read *) fib_data(fib);
1030         readcmd->command = cpu_to_le32(VM_CtBlockRead);
1031         readcmd->cid = cpu_to_le32(scmd_id(cmd));
1032         readcmd->block = cpu_to_le32((u32)(lba&0xffffffff));
1033         readcmd->count = cpu_to_le32(count * 512);
1034
1035         aac_build_sg(cmd, &readcmd->sg);
1036         fibsize = sizeof(struct aac_read) +
1037                         ((le32_to_cpu(readcmd->sg.count) - 1) *
1038                          sizeof (struct sgentry));
1039         BUG_ON (fibsize > (fib->dev->max_fib_size -
1040                                 sizeof(struct aac_fibhdr)));
1041         /*
1042          *      Now send the Fib to the adapter
1043          */
1044         return aac_fib_send(ContainerCommand,
1045                           fib,
1046                           fibsize,
1047                           FsaNormal,
1048                           0, 1,
1049                           (fib_callback) io_callback,
1050                           (void *) cmd);
1051 }
1052
1053 static int aac_write_raw_io(struct fib * fib, struct scsi_cmnd * cmd, u64 lba, u32 count, int fua)
1054 {
1055         u16 fibsize;
1056         struct aac_raw_io *writecmd;
1057         aac_fib_init(fib);
1058         writecmd = (struct aac_raw_io *) fib_data(fib);
1059         writecmd->block[0] = cpu_to_le32((u32)(lba&0xffffffff));
1060         writecmd->block[1] = cpu_to_le32((u32)((lba&0xffffffff00000000LL)>>32));
1061         writecmd->count = cpu_to_le32(count<<9);
1062         writecmd->cid = cpu_to_le16(scmd_id(cmd));
1063         writecmd->flags = (fua && ((aac_cache & 5) != 1) &&
1064           (((aac_cache & 5) != 5) || !fib->dev->cache_protected)) ?
1065                 cpu_to_le16(IO_TYPE_WRITE|IO_SUREWRITE) :
1066                 cpu_to_le16(IO_TYPE_WRITE);
1067         writecmd->bpTotal = 0;
1068         writecmd->bpComplete = 0;
1069
1070         aac_build_sgraw(cmd, &writecmd->sg);
1071         fibsize = sizeof(struct aac_raw_io) + ((le32_to_cpu(writecmd->sg.count) - 1) * sizeof (struct sgentryraw));
1072         BUG_ON(fibsize > (fib->dev->max_fib_size - sizeof(struct aac_fibhdr)));
1073         /*
1074          *      Now send the Fib to the adapter
1075          */
1076         return aac_fib_send(ContainerRawIo,
1077                           fib,
1078                           fibsize,
1079                           FsaNormal,
1080                           0, 1,
1081                           (fib_callback) io_callback,
1082                           (void *) cmd);
1083 }
1084
1085 static int aac_write_block64(struct fib * fib, struct scsi_cmnd * cmd, u64 lba, u32 count, int fua)
1086 {
1087         u16 fibsize;
1088         struct aac_write64 *writecmd;
1089         aac_fib_init(fib);
1090         writecmd = (struct aac_write64 *) fib_data(fib);
1091         writecmd->command = cpu_to_le32(VM_CtHostWrite64);
1092         writecmd->cid = cpu_to_le16(scmd_id(cmd));
1093         writecmd->sector_count = cpu_to_le16(count);
1094         writecmd->block = cpu_to_le32((u32)(lba&0xffffffff));
1095         writecmd->pad   = 0;
1096         writecmd->flags = 0;
1097
1098         aac_build_sg64(cmd, &writecmd->sg);
1099         fibsize = sizeof(struct aac_write64) +
1100                 ((le32_to_cpu(writecmd->sg.count) - 1) *
1101                  sizeof (struct sgentry64));
1102         BUG_ON (fibsize > (fib->dev->max_fib_size -
1103                                 sizeof(struct aac_fibhdr)));
1104         /*
1105          *      Now send the Fib to the adapter
1106          */
1107         return aac_fib_send(ContainerCommand64,
1108                           fib,
1109                           fibsize,
1110                           FsaNormal,
1111                           0, 1,
1112                           (fib_callback) io_callback,
1113                           (void *) cmd);
1114 }
1115
1116 static int aac_write_block(struct fib * fib, struct scsi_cmnd * cmd, u64 lba, u32 count, int fua)
1117 {
1118         u16 fibsize;
1119         struct aac_write *writecmd;
1120         aac_fib_init(fib);
1121         writecmd = (struct aac_write *) fib_data(fib);
1122         writecmd->command = cpu_to_le32(VM_CtBlockWrite);
1123         writecmd->cid = cpu_to_le32(scmd_id(cmd));
1124         writecmd->block = cpu_to_le32((u32)(lba&0xffffffff));
1125         writecmd->count = cpu_to_le32(count * 512);
1126         writecmd->sg.count = cpu_to_le32(1);
1127         /* ->stable is not used - it did mean which type of write */
1128
1129         aac_build_sg(cmd, &writecmd->sg);
1130         fibsize = sizeof(struct aac_write) +
1131                 ((le32_to_cpu(writecmd->sg.count) - 1) *
1132                  sizeof (struct sgentry));
1133         BUG_ON (fibsize > (fib->dev->max_fib_size -
1134                                 sizeof(struct aac_fibhdr)));
1135         /*
1136          *      Now send the Fib to the adapter
1137          */
1138         return aac_fib_send(ContainerCommand,
1139                           fib,
1140                           fibsize,
1141                           FsaNormal,
1142                           0, 1,
1143                           (fib_callback) io_callback,
1144                           (void *) cmd);
1145 }
1146
1147 static struct aac_srb * aac_scsi_common(struct fib * fib, struct scsi_cmnd * cmd)
1148 {
1149         struct aac_srb * srbcmd;
1150         u32 flag;
1151         u32 timeout;
1152
1153         aac_fib_init(fib);
1154         switch(cmd->sc_data_direction){
1155         case DMA_TO_DEVICE:
1156                 flag = SRB_DataOut;
1157                 break;
1158         case DMA_BIDIRECTIONAL:
1159                 flag = SRB_DataIn | SRB_DataOut;
1160                 break;
1161         case DMA_FROM_DEVICE:
1162                 flag = SRB_DataIn;
1163                 break;
1164         case DMA_NONE:
1165         default:        /* shuts up some versions of gcc */
1166                 flag = SRB_NoDataXfer;
1167                 break;
1168         }
1169
1170         srbcmd = (struct aac_srb*) fib_data(fib);
1171         srbcmd->function = cpu_to_le32(SRBF_ExecuteScsi);
1172         srbcmd->channel  = cpu_to_le32(aac_logical_to_phys(scmd_channel(cmd)));
1173         srbcmd->id       = cpu_to_le32(scmd_id(cmd));
1174         srbcmd->lun      = cpu_to_le32(cmd->device->lun);
1175         srbcmd->flags    = cpu_to_le32(flag);
1176         timeout = cmd->request->timeout/HZ;
1177         if (timeout == 0)
1178                 timeout = 1;
1179         srbcmd->timeout  = cpu_to_le32(timeout);  // timeout in seconds
1180         srbcmd->retry_limit = 0; /* Obsolete parameter */
1181         srbcmd->cdb_size = cpu_to_le32(cmd->cmd_len);
1182         return srbcmd;
1183 }
1184
1185 static void aac_srb_callback(void *context, struct fib * fibptr);
1186
1187 static int aac_scsi_64(struct fib * fib, struct scsi_cmnd * cmd)
1188 {
1189         u16 fibsize;
1190         struct aac_srb * srbcmd = aac_scsi_common(fib, cmd);
1191
1192         aac_build_sg64(cmd, (struct sgmap64*) &srbcmd->sg);
1193         srbcmd->count = cpu_to_le32(scsi_bufflen(cmd));
1194
1195         memset(srbcmd->cdb, 0, sizeof(srbcmd->cdb));
1196         memcpy(srbcmd->cdb, cmd->cmnd, cmd->cmd_len);
1197         /*
1198          *      Build Scatter/Gather list
1199          */
1200         fibsize = sizeof (struct aac_srb) - sizeof (struct sgentry) +
1201                 ((le32_to_cpu(srbcmd->sg.count) & 0xff) *
1202                  sizeof (struct sgentry64));
1203         BUG_ON (fibsize > (fib->dev->max_fib_size -
1204                                 sizeof(struct aac_fibhdr)));
1205
1206         /*
1207          *      Now send the Fib to the adapter
1208          */
1209         return aac_fib_send(ScsiPortCommand64, fib,
1210                                 fibsize, FsaNormal, 0, 1,
1211                                   (fib_callback) aac_srb_callback,
1212                                   (void *) cmd);
1213 }
1214
1215 static int aac_scsi_32(struct fib * fib, struct scsi_cmnd * cmd)
1216 {
1217         u16 fibsize;
1218         struct aac_srb * srbcmd = aac_scsi_common(fib, cmd);
1219
1220         aac_build_sg(cmd, (struct sgmap*)&srbcmd->sg);
1221         srbcmd->count = cpu_to_le32(scsi_bufflen(cmd));
1222
1223         memset(srbcmd->cdb, 0, sizeof(srbcmd->cdb));
1224         memcpy(srbcmd->cdb, cmd->cmnd, cmd->cmd_len);
1225         /*
1226          *      Build Scatter/Gather list
1227          */
1228         fibsize = sizeof (struct aac_srb) +
1229                 (((le32_to_cpu(srbcmd->sg.count) & 0xff) - 1) *
1230                  sizeof (struct sgentry));
1231         BUG_ON (fibsize > (fib->dev->max_fib_size -
1232                                 sizeof(struct aac_fibhdr)));
1233
1234         /*
1235          *      Now send the Fib to the adapter
1236          */
1237         return aac_fib_send(ScsiPortCommand, fib, fibsize, FsaNormal, 0, 1,
1238                                   (fib_callback) aac_srb_callback, (void *) cmd);
1239 }
1240
1241 static int aac_scsi_32_64(struct fib * fib, struct scsi_cmnd * cmd)
1242 {
1243         if ((sizeof(dma_addr_t) > 4) && fib->dev->needs_dac &&
1244             (fib->dev->adapter_info.options & AAC_OPT_SGMAP_HOST64))
1245                 return FAILED;
1246         return aac_scsi_32(fib, cmd);
1247 }
1248
1249 int aac_get_adapter_info(struct aac_dev* dev)
1250 {
1251         struct fib* fibptr;
1252         int rcode;
1253         u32 tmp;
1254         struct aac_adapter_info *info;
1255         struct aac_bus_info *command;
1256         struct aac_bus_info_response *bus_info;
1257
1258         if (!(fibptr = aac_fib_alloc(dev)))
1259                 return -ENOMEM;
1260
1261         aac_fib_init(fibptr);
1262         info = (struct aac_adapter_info *) fib_data(fibptr);
1263         memset(info,0,sizeof(*info));
1264
1265         rcode = aac_fib_send(RequestAdapterInfo,
1266                          fibptr,
1267                          sizeof(*info),
1268                          FsaNormal,
1269                          -1, 1, /* First `interrupt' command uses special wait */
1270                          NULL,
1271                          NULL);
1272
1273         if (rcode < 0) {
1274                 /* FIB should be freed only after
1275                  * getting the response from the F/W */
1276                 if (rcode != -ERESTARTSYS) {
1277                         aac_fib_complete(fibptr);
1278                         aac_fib_free(fibptr);
1279                 }
1280                 return rcode;
1281         }
1282         memcpy(&dev->adapter_info, info, sizeof(*info));
1283
1284         if (dev->adapter_info.options & AAC_OPT_SUPPLEMENT_ADAPTER_INFO) {
1285                 struct aac_supplement_adapter_info * sinfo;
1286
1287                 aac_fib_init(fibptr);
1288
1289                 sinfo = (struct aac_supplement_adapter_info *) fib_data(fibptr);
1290
1291                 memset(sinfo,0,sizeof(*sinfo));
1292
1293                 rcode = aac_fib_send(RequestSupplementAdapterInfo,
1294                                  fibptr,
1295                                  sizeof(*sinfo),
1296                                  FsaNormal,
1297                                  1, 1,
1298                                  NULL,
1299                                  NULL);
1300
1301                 if (rcode >= 0)
1302                         memcpy(&dev->supplement_adapter_info, sinfo, sizeof(*sinfo));
1303                 if (rcode == -ERESTARTSYS) {
1304                         fibptr = aac_fib_alloc(dev);
1305                         if (!fibptr)
1306                                 return -ENOMEM;
1307                 }
1308
1309         }
1310
1311
1312         /*
1313          * GetBusInfo
1314          */
1315
1316         aac_fib_init(fibptr);
1317
1318         bus_info = (struct aac_bus_info_response *) fib_data(fibptr);
1319
1320         memset(bus_info, 0, sizeof(*bus_info));
1321
1322         command = (struct aac_bus_info *)bus_info;
1323
1324         command->Command = cpu_to_le32(VM_Ioctl);
1325         command->ObjType = cpu_to_le32(FT_DRIVE);
1326         command->MethodId = cpu_to_le32(1);
1327         command->CtlCmd = cpu_to_le32(GetBusInfo);
1328
1329         rcode = aac_fib_send(ContainerCommand,
1330                          fibptr,
1331                          sizeof (*bus_info),
1332                          FsaNormal,
1333                          1, 1,
1334                          NULL, NULL);
1335
1336         /* reasoned default */
1337         dev->maximum_num_physicals = 16;
1338         if (rcode >= 0 && le32_to_cpu(bus_info->Status) == ST_OK) {
1339                 dev->maximum_num_physicals = le32_to_cpu(bus_info->TargetsPerBus);
1340                 dev->maximum_num_channels = le32_to_cpu(bus_info->BusCount);
1341         }
1342
1343         if (!dev->in_reset) {
1344                 char buffer[16];
1345                 tmp = le32_to_cpu(dev->adapter_info.kernelrev);
1346                 printk(KERN_INFO "%s%d: kernel %d.%d-%d[%d] %.*s\n",
1347                         dev->name,
1348                         dev->id,
1349                         tmp>>24,
1350                         (tmp>>16)&0xff,
1351                         tmp&0xff,
1352                         le32_to_cpu(dev->adapter_info.kernelbuild),
1353                         (int)sizeof(dev->supplement_adapter_info.BuildDate),
1354                         dev->supplement_adapter_info.BuildDate);
1355                 tmp = le32_to_cpu(dev->adapter_info.monitorrev);
1356                 printk(KERN_INFO "%s%d: monitor %d.%d-%d[%d]\n",
1357                         dev->name, dev->id,
1358                         tmp>>24,(tmp>>16)&0xff,tmp&0xff,
1359                         le32_to_cpu(dev->adapter_info.monitorbuild));
1360                 tmp = le32_to_cpu(dev->adapter_info.biosrev);
1361                 printk(KERN_INFO "%s%d: bios %d.%d-%d[%d]\n",
1362                         dev->name, dev->id,
1363                         tmp>>24,(tmp>>16)&0xff,tmp&0xff,
1364                         le32_to_cpu(dev->adapter_info.biosbuild));
1365                 buffer[0] = '\0';
1366                 if (aac_get_serial_number(
1367                   shost_to_class(dev->scsi_host_ptr), buffer))
1368                         printk(KERN_INFO "%s%d: serial %s",
1369                           dev->name, dev->id, buffer);
1370                 if (dev->supplement_adapter_info.VpdInfo.Tsid[0]) {
1371                         printk(KERN_INFO "%s%d: TSID %.*s\n",
1372                           dev->name, dev->id,
1373                           (int)sizeof(dev->supplement_adapter_info.VpdInfo.Tsid),
1374                           dev->supplement_adapter_info.VpdInfo.Tsid);
1375                 }
1376                 if (!aac_check_reset || ((aac_check_reset == 1) &&
1377                   (dev->supplement_adapter_info.SupportedOptions2 &
1378                   AAC_OPTION_IGNORE_RESET))) {
1379                         printk(KERN_INFO "%s%d: Reset Adapter Ignored\n",
1380                           dev->name, dev->id);
1381                 }
1382         }
1383
1384         dev->cache_protected = 0;
1385         dev->jbod = ((dev->supplement_adapter_info.FeatureBits &
1386                 AAC_FEATURE_JBOD) != 0);
1387         dev->nondasd_support = 0;
1388         dev->raid_scsi_mode = 0;
1389         if(dev->adapter_info.options & AAC_OPT_NONDASD)
1390                 dev->nondasd_support = 1;
1391
1392         /*
1393          * If the firmware supports ROMB RAID/SCSI mode and we are currently
1394          * in RAID/SCSI mode, set the flag. For now if in this mode we will
1395          * force nondasd support on. If we decide to allow the non-dasd flag
1396          * additional changes changes will have to be made to support
1397          * RAID/SCSI.  the function aac_scsi_cmd in this module will have to be
1398          * changed to support the new dev->raid_scsi_mode flag instead of
1399          * leaching off of the dev->nondasd_support flag. Also in linit.c the
1400          * function aac_detect will have to be modified where it sets up the
1401          * max number of channels based on the aac->nondasd_support flag only.
1402          */
1403         if ((dev->adapter_info.options & AAC_OPT_SCSI_MANAGED) &&
1404             (dev->adapter_info.options & AAC_OPT_RAID_SCSI_MODE)) {
1405                 dev->nondasd_support = 1;
1406                 dev->raid_scsi_mode = 1;
1407         }
1408         if (dev->raid_scsi_mode != 0)
1409                 printk(KERN_INFO "%s%d: ROMB RAID/SCSI mode enabled\n",
1410                                 dev->name, dev->id);
1411
1412         if (nondasd != -1)
1413                 dev->nondasd_support = (nondasd!=0);
1414         if (dev->nondasd_support && !dev->in_reset)
1415                 printk(KERN_INFO "%s%d: Non-DASD support enabled.\n",dev->name, dev->id);
1416
1417         if (dma_get_required_mask(&dev->pdev->dev) > DMA_BIT_MASK(32))
1418                 dev->needs_dac = 1;
1419         dev->dac_support = 0;
1420         if ((sizeof(dma_addr_t) > 4) && dev->needs_dac &&
1421             (dev->adapter_info.options & AAC_OPT_SGMAP_HOST64)) {
1422                 if (!dev->in_reset)
1423                         printk(KERN_INFO "%s%d: 64bit support enabled.\n",
1424                                 dev->name, dev->id);
1425                 dev->dac_support = 1;
1426         }
1427
1428         if(dacmode != -1) {
1429                 dev->dac_support = (dacmode!=0);
1430         }
1431
1432         /* avoid problems with AAC_QUIRK_SCSI_32 controllers */
1433         if (dev->dac_support && (aac_get_driver_ident(dev->cardtype)->quirks
1434                 & AAC_QUIRK_SCSI_32)) {
1435                 dev->nondasd_support = 0;
1436                 dev->jbod = 0;
1437                 expose_physicals = 0;
1438         }
1439
1440         if(dev->dac_support != 0) {
1441                 if (!pci_set_dma_mask(dev->pdev, DMA_BIT_MASK(64)) &&
1442                         !pci_set_consistent_dma_mask(dev->pdev, DMA_BIT_MASK(64))) {
1443                         if (!dev->in_reset)
1444                                 printk(KERN_INFO"%s%d: 64 Bit DAC enabled\n",
1445                                         dev->name, dev->id);
1446                 } else if (!pci_set_dma_mask(dev->pdev, DMA_BIT_MASK(32)) &&
1447                         !pci_set_consistent_dma_mask(dev->pdev, DMA_BIT_MASK(32))) {
1448                         printk(KERN_INFO"%s%d: DMA mask set failed, 64 Bit DAC disabled\n",
1449                                 dev->name, dev->id);
1450                         dev->dac_support = 0;
1451                 } else {
1452                         printk(KERN_WARNING"%s%d: No suitable DMA available.\n",
1453                                 dev->name, dev->id);
1454                         rcode = -ENOMEM;
1455                 }
1456         }
1457         /*
1458          * Deal with configuring for the individualized limits of each packet
1459          * interface.
1460          */
1461         dev->a_ops.adapter_scsi = (dev->dac_support)
1462           ? ((aac_get_driver_ident(dev->cardtype)->quirks & AAC_QUIRK_SCSI_32)
1463                                 ? aac_scsi_32_64
1464                                 : aac_scsi_64)
1465                                 : aac_scsi_32;
1466         if (dev->raw_io_interface) {
1467                 dev->a_ops.adapter_bounds = (dev->raw_io_64)
1468                                         ? aac_bounds_64
1469                                         : aac_bounds_32;
1470                 dev->a_ops.adapter_read = aac_read_raw_io;
1471                 dev->a_ops.adapter_write = aac_write_raw_io;
1472         } else {
1473                 dev->a_ops.adapter_bounds = aac_bounds_32;
1474                 dev->scsi_host_ptr->sg_tablesize = (dev->max_fib_size -
1475                         sizeof(struct aac_fibhdr) -
1476                         sizeof(struct aac_write) + sizeof(struct sgentry)) /
1477                                 sizeof(struct sgentry);
1478                 if (dev->dac_support) {
1479                         dev->a_ops.adapter_read = aac_read_block64;
1480                         dev->a_ops.adapter_write = aac_write_block64;
1481                         /*
1482                          * 38 scatter gather elements
1483                          */
1484                         dev->scsi_host_ptr->sg_tablesize =
1485                                 (dev->max_fib_size -
1486                                 sizeof(struct aac_fibhdr) -
1487                                 sizeof(struct aac_write64) +
1488                                 sizeof(struct sgentry64)) /
1489                                         sizeof(struct sgentry64);
1490                 } else {
1491                         dev->a_ops.adapter_read = aac_read_block;
1492                         dev->a_ops.adapter_write = aac_write_block;
1493                 }
1494                 dev->scsi_host_ptr->max_sectors = AAC_MAX_32BIT_SGBCOUNT;
1495                 if (dev->adapter_info.options & AAC_OPT_NEW_COMM_TYPE1)
1496                         dev->adapter_info.options |= AAC_OPT_NEW_COMM;
1497                 if (!(dev->adapter_info.options & AAC_OPT_NEW_COMM)) {
1498                         /*
1499                          * Worst case size that could cause sg overflow when
1500                          * we break up SG elements that are larger than 64KB.
1501                          * Would be nice if we could tell the SCSI layer what
1502                          * the maximum SG element size can be. Worst case is
1503                          * (sg_tablesize-1) 4KB elements with one 64KB
1504                          * element.
1505                          *      32bit -> 468 or 238KB   64bit -> 424 or 212KB
1506                          */
1507                         dev->scsi_host_ptr->max_sectors =
1508                           (dev->scsi_host_ptr->sg_tablesize * 8) + 112;
1509                 }
1510         }
1511         /* FIB should be freed only after getting the response from the F/W */
1512         if (rcode != -ERESTARTSYS) {
1513                 aac_fib_complete(fibptr);
1514                 aac_fib_free(fibptr);
1515         }
1516
1517         return rcode;
1518 }
1519
1520
1521 static void io_callback(void *context, struct fib * fibptr)
1522 {
1523         struct aac_dev *dev;
1524         struct aac_read_reply *readreply;
1525         struct scsi_cmnd *scsicmd;
1526         u32 cid;
1527
1528         scsicmd = (struct scsi_cmnd *) context;
1529
1530         if (!aac_valid_context(scsicmd, fibptr))
1531                 return;
1532
1533         dev = fibptr->dev;
1534         cid = scmd_id(scsicmd);
1535
1536         if (nblank(dprintk(x))) {
1537                 u64 lba;
1538                 switch (scsicmd->cmnd[0]) {
1539                 case WRITE_6:
1540                 case READ_6:
1541                         lba = ((scsicmd->cmnd[1] & 0x1F) << 16) |
1542                             (scsicmd->cmnd[2] << 8) | scsicmd->cmnd[3];
1543                         break;
1544                 case WRITE_16:
1545                 case READ_16:
1546                         lba = ((u64)scsicmd->cmnd[2] << 56) |
1547                               ((u64)scsicmd->cmnd[3] << 48) |
1548                               ((u64)scsicmd->cmnd[4] << 40) |
1549                               ((u64)scsicmd->cmnd[5] << 32) |
1550                               ((u64)scsicmd->cmnd[6] << 24) |
1551                               (scsicmd->cmnd[7] << 16) |
1552                               (scsicmd->cmnd[8] << 8) | scsicmd->cmnd[9];
1553                         break;
1554                 case WRITE_12:
1555                 case READ_12:
1556                         lba = ((u64)scsicmd->cmnd[2] << 24) |
1557                               (scsicmd->cmnd[3] << 16) |
1558                               (scsicmd->cmnd[4] << 8) | scsicmd->cmnd[5];
1559                         break;
1560                 default:
1561                         lba = ((u64)scsicmd->cmnd[2] << 24) |
1562                                (scsicmd->cmnd[3] << 16) |
1563                                (scsicmd->cmnd[4] << 8) | scsicmd->cmnd[5];
1564                         break;
1565                 }
1566                 printk(KERN_DEBUG
1567                   "io_callback[cpu %d]: lba = %llu, t = %ld.\n",
1568                   smp_processor_id(), (unsigned long long)lba, jiffies);
1569         }
1570
1571         BUG_ON(fibptr == NULL);
1572
1573         scsi_dma_unmap(scsicmd);
1574
1575         readreply = (struct aac_read_reply *)fib_data(fibptr);
1576         switch (le32_to_cpu(readreply->status)) {
1577         case ST_OK:
1578                 scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 |
1579                         SAM_STAT_GOOD;
1580                 dev->fsa_dev[cid].sense_data.sense_key = NO_SENSE;
1581                 break;
1582         case ST_NOT_READY:
1583                 scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 |
1584                         SAM_STAT_CHECK_CONDITION;
1585                 set_sense(&dev->fsa_dev[cid].sense_data, NOT_READY,
1586                   SENCODE_BECOMING_READY, ASENCODE_BECOMING_READY, 0, 0);
1587                 memcpy(scsicmd->sense_buffer, &dev->fsa_dev[cid].sense_data,
1588                        min_t(size_t, sizeof(dev->fsa_dev[cid].sense_data),
1589                              SCSI_SENSE_BUFFERSIZE));
1590                 break;
1591         default:
1592 #ifdef AAC_DETAILED_STATUS_INFO
1593                 printk(KERN_WARNING "io_callback: io failed, status = %d\n",
1594                   le32_to_cpu(readreply->status));
1595 #endif
1596                 scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 |
1597                         SAM_STAT_CHECK_CONDITION;
1598                 set_sense(&dev->fsa_dev[cid].sense_data,
1599                   HARDWARE_ERROR, SENCODE_INTERNAL_TARGET_FAILURE,
1600                   ASENCODE_INTERNAL_TARGET_FAILURE, 0, 0);
1601                 memcpy(scsicmd->sense_buffer, &dev->fsa_dev[cid].sense_data,
1602                        min_t(size_t, sizeof(dev->fsa_dev[cid].sense_data),
1603                              SCSI_SENSE_BUFFERSIZE));
1604                 break;
1605         }
1606         aac_fib_complete(fibptr);
1607         aac_fib_free(fibptr);
1608
1609         scsicmd->scsi_done(scsicmd);
1610 }
1611
1612 static int aac_read(struct scsi_cmnd * scsicmd)
1613 {
1614         u64 lba;
1615         u32 count;
1616         int status;
1617         struct aac_dev *dev;
1618         struct fib * cmd_fibcontext;
1619         int cid;
1620
1621         dev = (struct aac_dev *)scsicmd->device->host->hostdata;
1622         /*
1623          *      Get block address and transfer length
1624          */
1625         switch (scsicmd->cmnd[0]) {
1626         case READ_6:
1627                 dprintk((KERN_DEBUG "aachba: received a read(6) command on id %d.\n", scmd_id(scsicmd)));
1628
1629                 lba = ((scsicmd->cmnd[1] & 0x1F) << 16) |
1630                         (scsicmd->cmnd[2] << 8) | scsicmd->cmnd[3];
1631                 count = scsicmd->cmnd[4];
1632
1633                 if (count == 0)
1634                         count = 256;
1635                 break;
1636         case READ_16:
1637                 dprintk((KERN_DEBUG "aachba: received a read(16) command on id %d.\n", scmd_id(scsicmd)));
1638
1639                 lba =   ((u64)scsicmd->cmnd[2] << 56) |
1640                         ((u64)scsicmd->cmnd[3] << 48) |
1641                         ((u64)scsicmd->cmnd[4] << 40) |
1642                         ((u64)scsicmd->cmnd[5] << 32) |
1643                         ((u64)scsicmd->cmnd[6] << 24) |
1644                         (scsicmd->cmnd[7] << 16) |
1645                         (scsicmd->cmnd[8] << 8) | scsicmd->cmnd[9];
1646                 count = (scsicmd->cmnd[10] << 24) |
1647                         (scsicmd->cmnd[11] << 16) |
1648                         (scsicmd->cmnd[12] << 8) | scsicmd->cmnd[13];
1649                 break;
1650         case READ_12:
1651                 dprintk((KERN_DEBUG "aachba: received a read(12) command on id %d.\n", scmd_id(scsicmd)));
1652
1653                 lba = ((u64)scsicmd->cmnd[2] << 24) |
1654                         (scsicmd->cmnd[3] << 16) |
1655                         (scsicmd->cmnd[4] << 8) | scsicmd->cmnd[5];
1656                 count = (scsicmd->cmnd[6] << 24) |
1657                         (scsicmd->cmnd[7] << 16) |
1658                         (scsicmd->cmnd[8] << 8) | scsicmd->cmnd[9];
1659                 break;
1660         default:
1661                 dprintk((KERN_DEBUG "aachba: received a read(10) command on id %d.\n", scmd_id(scsicmd)));
1662
1663                 lba = ((u64)scsicmd->cmnd[2] << 24) |
1664                         (scsicmd->cmnd[3] << 16) |
1665                         (scsicmd->cmnd[4] << 8) | scsicmd->cmnd[5];
1666                 count = (scsicmd->cmnd[7] << 8) | scsicmd->cmnd[8];
1667                 break;
1668         }
1669
1670         if ((lba + count) > (dev->fsa_dev[scmd_id(scsicmd)].size)) {
1671                 cid = scmd_id(scsicmd);
1672                 dprintk((KERN_DEBUG "aacraid: Illegal lba\n"));
1673                 scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 |
1674                         SAM_STAT_CHECK_CONDITION;
1675                 set_sense(&dev->fsa_dev[cid].sense_data,
1676                           HARDWARE_ERROR, SENCODE_INTERNAL_TARGET_FAILURE,
1677                           ASENCODE_INTERNAL_TARGET_FAILURE, 0, 0);
1678                 memcpy(scsicmd->sense_buffer, &dev->fsa_dev[cid].sense_data,
1679                        min_t(size_t, sizeof(dev->fsa_dev[cid].sense_data),
1680                              SCSI_SENSE_BUFFERSIZE));
1681                 scsicmd->scsi_done(scsicmd);
1682                 return 1;
1683         }
1684
1685         dprintk((KERN_DEBUG "aac_read[cpu %d]: lba = %llu, t = %ld.\n",
1686           smp_processor_id(), (unsigned long long)lba, jiffies));
1687         if (aac_adapter_bounds(dev,scsicmd,lba))
1688                 return 0;
1689         /*
1690          *      Alocate and initialize a Fib
1691          */
1692         if (!(cmd_fibcontext = aac_fib_alloc(dev))) {
1693                 printk(KERN_WARNING "aac_read: fib allocation failed\n");
1694                 return -1;
1695         }
1696
1697         status = aac_adapter_read(cmd_fibcontext, scsicmd, lba, count);
1698
1699         /*
1700          *      Check that the command queued to the controller
1701          */
1702         if (status == -EINPROGRESS) {
1703                 scsicmd->SCp.phase = AAC_OWNER_FIRMWARE;
1704                 return 0;
1705         }
1706
1707         printk(KERN_WARNING "aac_read: aac_fib_send failed with status: %d.\n", status);
1708         /*
1709          *      For some reason, the Fib didn't queue, return QUEUE_FULL
1710          */
1711         scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_TASK_SET_FULL;
1712         scsicmd->scsi_done(scsicmd);
1713         aac_fib_complete(cmd_fibcontext);
1714         aac_fib_free(cmd_fibcontext);
1715         return 0;
1716 }
1717
1718 static int aac_write(struct scsi_cmnd * scsicmd)
1719 {
1720         u64 lba;
1721         u32 count;
1722         int fua;
1723         int status;
1724         struct aac_dev *dev;
1725         struct fib * cmd_fibcontext;
1726         int cid;
1727
1728         dev = (struct aac_dev *)scsicmd->device->host->hostdata;
1729         /*
1730          *      Get block address and transfer length
1731          */
1732         if (scsicmd->cmnd[0] == WRITE_6)        /* 6 byte command */
1733         {
1734                 lba = ((scsicmd->cmnd[1] & 0x1F) << 16) | (scsicmd->cmnd[2] << 8) | scsicmd->cmnd[3];
1735                 count = scsicmd->cmnd[4];
1736                 if (count == 0)
1737                         count = 256;
1738                 fua = 0;
1739         } else if (scsicmd->cmnd[0] == WRITE_16) { /* 16 byte command */
1740                 dprintk((KERN_DEBUG "aachba: received a write(16) command on id %d.\n", scmd_id(scsicmd)));
1741
1742                 lba =   ((u64)scsicmd->cmnd[2] << 56) |
1743                         ((u64)scsicmd->cmnd[3] << 48) |
1744                         ((u64)scsicmd->cmnd[4] << 40) |
1745                         ((u64)scsicmd->cmnd[5] << 32) |
1746                         ((u64)scsicmd->cmnd[6] << 24) |
1747                         (scsicmd->cmnd[7] << 16) |
1748                         (scsicmd->cmnd[8] << 8) | scsicmd->cmnd[9];
1749                 count = (scsicmd->cmnd[10] << 24) | (scsicmd->cmnd[11] << 16) |
1750                         (scsicmd->cmnd[12] << 8) | scsicmd->cmnd[13];
1751                 fua = scsicmd->cmnd[1] & 0x8;
1752         } else if (scsicmd->cmnd[0] == WRITE_12) { /* 12 byte command */
1753                 dprintk((KERN_DEBUG "aachba: received a write(12) command on id %d.\n", scmd_id(scsicmd)));
1754
1755                 lba = ((u64)scsicmd->cmnd[2] << 24) | (scsicmd->cmnd[3] << 16)
1756                     | (scsicmd->cmnd[4] << 8) | scsicmd->cmnd[5];
1757                 count = (scsicmd->cmnd[6] << 24) | (scsicmd->cmnd[7] << 16)
1758                       | (scsicmd->cmnd[8] << 8) | scsicmd->cmnd[9];
1759                 fua = scsicmd->cmnd[1] & 0x8;
1760         } else {
1761                 dprintk((KERN_DEBUG "aachba: received a write(10) command on id %d.\n", scmd_id(scsicmd)));
1762                 lba = ((u64)scsicmd->cmnd[2] << 24) | (scsicmd->cmnd[3] << 16) | (scsicmd->cmnd[4] << 8) | scsicmd->cmnd[5];
1763                 count = (scsicmd->cmnd[7] << 8) | scsicmd->cmnd[8];
1764                 fua = scsicmd->cmnd[1] & 0x8;
1765         }
1766
1767         if ((lba + count) > (dev->fsa_dev[scmd_id(scsicmd)].size)) {
1768                 cid = scmd_id(scsicmd);
1769                 dprintk((KERN_DEBUG "aacraid: Illegal lba\n"));
1770                 scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 |
1771                         SAM_STAT_CHECK_CONDITION;
1772                 set_sense(&dev->fsa_dev[cid].sense_data,
1773                           HARDWARE_ERROR, SENCODE_INTERNAL_TARGET_FAILURE,
1774                           ASENCODE_INTERNAL_TARGET_FAILURE, 0, 0);
1775                 memcpy(scsicmd->sense_buffer, &dev->fsa_dev[cid].sense_data,
1776                        min_t(size_t, sizeof(dev->fsa_dev[cid].sense_data),
1777                              SCSI_SENSE_BUFFERSIZE));
1778                 scsicmd->scsi_done(scsicmd);
1779                 return 1;
1780         }
1781
1782         dprintk((KERN_DEBUG "aac_write[cpu %d]: lba = %llu, t = %ld.\n",
1783           smp_processor_id(), (unsigned long long)lba, jiffies));
1784         if (aac_adapter_bounds(dev,scsicmd,lba))
1785                 return 0;
1786         /*
1787          *      Allocate and initialize a Fib then setup a BlockWrite command
1788          */
1789         if (!(cmd_fibcontext = aac_fib_alloc(dev))) {
1790                 /* FIB temporarily unavailable,not catastrophic failure */
1791
1792                 /* scsicmd->result = DID_ERROR << 16;
1793                  * scsicmd->scsi_done(scsicmd);
1794                  * return 0;
1795                  */
1796                 printk(KERN_WARNING "aac_write: fib allocation failed\n");
1797                 return -1;
1798         }
1799
1800         status = aac_adapter_write(cmd_fibcontext, scsicmd, lba, count, fua);
1801
1802         /*
1803          *      Check that the command queued to the controller
1804          */
1805         if (status == -EINPROGRESS) {
1806                 scsicmd->SCp.phase = AAC_OWNER_FIRMWARE;
1807                 return 0;
1808         }
1809
1810         printk(KERN_WARNING "aac_write: aac_fib_send failed with status: %d\n", status);
1811         /*
1812          *      For some reason, the Fib didn't queue, return QUEUE_FULL
1813          */
1814         scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_TASK_SET_FULL;
1815         scsicmd->scsi_done(scsicmd);
1816
1817         aac_fib_complete(cmd_fibcontext);
1818         aac_fib_free(cmd_fibcontext);
1819         return 0;
1820 }
1821
1822 static void synchronize_callback(void *context, struct fib *fibptr)
1823 {
1824         struct aac_synchronize_reply *synchronizereply;
1825         struct scsi_cmnd *cmd;
1826
1827         cmd = context;
1828
1829         if (!aac_valid_context(cmd, fibptr))
1830                 return;
1831
1832         dprintk((KERN_DEBUG "synchronize_callback[cpu %d]: t = %ld.\n",
1833                                 smp_processor_id(), jiffies));
1834         BUG_ON(fibptr == NULL);
1835
1836
1837         synchronizereply = fib_data(fibptr);
1838         if (le32_to_cpu(synchronizereply->status) == CT_OK)
1839                 cmd->result = DID_OK << 16 |
1840                         COMMAND_COMPLETE << 8 | SAM_STAT_GOOD;
1841         else {
1842                 struct scsi_device *sdev = cmd->device;
1843                 struct aac_dev *dev = fibptr->dev;
1844                 u32 cid = sdev_id(sdev);
1845                 printk(KERN_WARNING
1846                      "synchronize_callback: synchronize failed, status = %d\n",
1847                      le32_to_cpu(synchronizereply->status));
1848                 cmd->result = DID_OK << 16 |
1849                         COMMAND_COMPLETE << 8 | SAM_STAT_CHECK_CONDITION;
1850                 set_sense(&dev->fsa_dev[cid].sense_data,
1851                   HARDWARE_ERROR, SENCODE_INTERNAL_TARGET_FAILURE,
1852                   ASENCODE_INTERNAL_TARGET_FAILURE, 0, 0);
1853                 memcpy(cmd->sense_buffer, &dev->fsa_dev[cid].sense_data,
1854                        min_t(size_t, sizeof(dev->fsa_dev[cid].sense_data),
1855                              SCSI_SENSE_BUFFERSIZE));
1856         }
1857
1858         aac_fib_complete(fibptr);
1859         aac_fib_free(fibptr);
1860         cmd->scsi_done(cmd);
1861 }
1862
1863 static int aac_synchronize(struct scsi_cmnd *scsicmd)
1864 {
1865         int status;
1866         struct fib *cmd_fibcontext;
1867         struct aac_synchronize *synchronizecmd;
1868         struct scsi_cmnd *cmd;
1869         struct scsi_device *sdev = scsicmd->device;
1870         int active = 0;
1871         struct aac_dev *aac;
1872         u64 lba = ((u64)scsicmd->cmnd[2] << 24) | (scsicmd->cmnd[3] << 16) |
1873                 (scsicmd->cmnd[4] << 8) | scsicmd->cmnd[5];
1874         u32 count = (scsicmd->cmnd[7] << 8) | scsicmd->cmnd[8];
1875         unsigned long flags;
1876
1877         /*
1878          * Wait for all outstanding queued commands to complete to this
1879          * specific target (block).
1880          */
1881         spin_lock_irqsave(&sdev->list_lock, flags);
1882         list_for_each_entry(cmd, &sdev->cmd_list, list)
1883                 if (cmd->SCp.phase == AAC_OWNER_FIRMWARE) {
1884                         u64 cmnd_lba;
1885                         u32 cmnd_count;
1886
1887                         if (cmd->cmnd[0] == WRITE_6) {
1888                                 cmnd_lba = ((cmd->cmnd[1] & 0x1F) << 16) |
1889                                         (cmd->cmnd[2] << 8) |
1890                                         cmd->cmnd[3];
1891                                 cmnd_count = cmd->cmnd[4];
1892                                 if (cmnd_count == 0)
1893                                         cmnd_count = 256;
1894                         } else if (cmd->cmnd[0] == WRITE_16) {
1895                                 cmnd_lba = ((u64)cmd->cmnd[2] << 56) |
1896                                         ((u64)cmd->cmnd[3] << 48) |
1897                                         ((u64)cmd->cmnd[4] << 40) |
1898                                         ((u64)cmd->cmnd[5] << 32) |
1899                                         ((u64)cmd->cmnd[6] << 24) |
1900                                         (cmd->cmnd[7] << 16) |
1901                                         (cmd->cmnd[8] << 8) |
1902                                         cmd->cmnd[9];
1903                                 cmnd_count = (cmd->cmnd[10] << 24) |
1904                                         (cmd->cmnd[11] << 16) |
1905                                         (cmd->cmnd[12] << 8) |
1906                                         cmd->cmnd[13];
1907                         } else if (cmd->cmnd[0] == WRITE_12) {
1908                                 cmnd_lba = ((u64)cmd->cmnd[2] << 24) |
1909                                         (cmd->cmnd[3] << 16) |
1910                                         (cmd->cmnd[4] << 8) |
1911                                         cmd->cmnd[5];
1912                                 cmnd_count = (cmd->cmnd[6] << 24) |
1913                                         (cmd->cmnd[7] << 16) |
1914                                         (cmd->cmnd[8] << 8) |
1915                                         cmd->cmnd[9];
1916                         } else if (cmd->cmnd[0] == WRITE_10) {
1917                                 cmnd_lba = ((u64)cmd->cmnd[2] << 24) |
1918                                         (cmd->cmnd[3] << 16) |
1919                                         (cmd->cmnd[4] << 8) |
1920                                         cmd->cmnd[5];
1921                                 cmnd_count = (cmd->cmnd[7] << 8) |
1922                                         cmd->cmnd[8];
1923                         } else
1924                                 continue;
1925                         if (((cmnd_lba + cmnd_count) < lba) ||
1926                           (count && ((lba + count) < cmnd_lba)))
1927                                 continue;
1928                         ++active;
1929                         break;
1930                 }
1931
1932         spin_unlock_irqrestore(&sdev->list_lock, flags);
1933
1934         /*
1935          *      Yield the processor (requeue for later)
1936          */
1937         if (active)
1938                 return SCSI_MLQUEUE_DEVICE_BUSY;
1939
1940         aac = (struct aac_dev *)sdev->host->hostdata;
1941         if (aac->in_reset)
1942                 return SCSI_MLQUEUE_HOST_BUSY;
1943
1944         /*
1945          *      Allocate and initialize a Fib
1946          */
1947         if (!(cmd_fibcontext = aac_fib_alloc(aac)))
1948                 return SCSI_MLQUEUE_HOST_BUSY;
1949
1950         aac_fib_init(cmd_fibcontext);
1951
1952         synchronizecmd = fib_data(cmd_fibcontext);
1953         synchronizecmd->command = cpu_to_le32(VM_ContainerConfig);
1954         synchronizecmd->type = cpu_to_le32(CT_FLUSH_CACHE);
1955         synchronizecmd->cid = cpu_to_le32(scmd_id(scsicmd));
1956         synchronizecmd->count =
1957              cpu_to_le32(sizeof(((struct aac_synchronize_reply *)NULL)->data));
1958
1959         /*
1960          *      Now send the Fib to the adapter
1961          */
1962         status = aac_fib_send(ContainerCommand,
1963                   cmd_fibcontext,
1964                   sizeof(struct aac_synchronize),
1965                   FsaNormal,
1966                   0, 1,
1967                   (fib_callback)synchronize_callback,
1968                   (void *)scsicmd);
1969
1970         /*
1971          *      Check that the command queued to the controller
1972          */
1973         if (status == -EINPROGRESS) {
1974                 scsicmd->SCp.phase = AAC_OWNER_FIRMWARE;
1975                 return 0;
1976         }
1977
1978         printk(KERN_WARNING
1979                 "aac_synchronize: aac_fib_send failed with status: %d.\n", status);
1980         aac_fib_complete(cmd_fibcontext);
1981         aac_fib_free(cmd_fibcontext);
1982         return SCSI_MLQUEUE_HOST_BUSY;
1983 }
1984
1985 static void aac_start_stop_callback(void *context, struct fib *fibptr)
1986 {
1987         struct scsi_cmnd *scsicmd = context;
1988
1989         if (!aac_valid_context(scsicmd, fibptr))
1990                 return;
1991
1992         BUG_ON(fibptr == NULL);
1993
1994         scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_GOOD;
1995
1996         aac_fib_complete(fibptr);
1997         aac_fib_free(fibptr);
1998         scsicmd->scsi_done(scsicmd);
1999 }
2000
2001 static int aac_start_stop(struct scsi_cmnd *scsicmd)
2002 {
2003         int status;
2004         struct fib *cmd_fibcontext;
2005         struct aac_power_management *pmcmd;
2006         struct scsi_device *sdev = scsicmd->device;
2007         struct aac_dev *aac = (struct aac_dev *)sdev->host->hostdata;
2008
2009         if (!(aac->supplement_adapter_info.SupportedOptions2 &
2010               AAC_OPTION_POWER_MANAGEMENT)) {
2011                 scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 |
2012                                   SAM_STAT_GOOD;
2013                 scsicmd->scsi_done(scsicmd);
2014                 return 0;
2015         }
2016
2017         if (aac->in_reset)
2018                 return SCSI_MLQUEUE_HOST_BUSY;
2019
2020         /*
2021          *      Allocate and initialize a Fib
2022          */
2023         cmd_fibcontext = aac_fib_alloc(aac);
2024         if (!cmd_fibcontext)
2025                 return SCSI_MLQUEUE_HOST_BUSY;
2026
2027         aac_fib_init(cmd_fibcontext);
2028
2029         pmcmd = fib_data(cmd_fibcontext);
2030         pmcmd->command = cpu_to_le32(VM_ContainerConfig);
2031         pmcmd->type = cpu_to_le32(CT_POWER_MANAGEMENT);
2032         /* Eject bit ignored, not relevant */
2033         pmcmd->sub = (scsicmd->cmnd[4] & 1) ?
2034                 cpu_to_le32(CT_PM_START_UNIT) : cpu_to_le32(CT_PM_STOP_UNIT);
2035         pmcmd->cid = cpu_to_le32(sdev_id(sdev));
2036         pmcmd->parm = (scsicmd->cmnd[1] & 1) ?
2037                 cpu_to_le32(CT_PM_UNIT_IMMEDIATE) : 0;
2038
2039         /*
2040          *      Now send the Fib to the adapter
2041          */
2042         status = aac_fib_send(ContainerCommand,
2043                   cmd_fibcontext,
2044                   sizeof(struct aac_power_management),
2045                   FsaNormal,
2046                   0, 1,
2047                   (fib_callback)aac_start_stop_callback,
2048                   (void *)scsicmd);
2049
2050         /*
2051          *      Check that the command queued to the controller
2052          */
2053         if (status == -EINPROGRESS) {
2054                 scsicmd->SCp.phase = AAC_OWNER_FIRMWARE;
2055                 return 0;
2056         }
2057
2058         aac_fib_complete(cmd_fibcontext);
2059         aac_fib_free(cmd_fibcontext);
2060         return SCSI_MLQUEUE_HOST_BUSY;
2061 }
2062
2063 /**
2064  *      aac_scsi_cmd()          -       Process SCSI command
2065  *      @scsicmd:               SCSI command block
2066  *
2067  *      Emulate a SCSI command and queue the required request for the
2068  *      aacraid firmware.
2069  */
2070
2071 int aac_scsi_cmd(struct scsi_cmnd * scsicmd)
2072 {
2073         u32 cid;
2074         struct Scsi_Host *host = scsicmd->device->host;
2075         struct aac_dev *dev = (struct aac_dev *)host->hostdata;
2076         struct fsa_dev_info *fsa_dev_ptr = dev->fsa_dev;
2077
2078         if (fsa_dev_ptr == NULL)
2079                 return -1;
2080         /*
2081          *      If the bus, id or lun is out of range, return fail
2082          *      Test does not apply to ID 16, the pseudo id for the controller
2083          *      itself.
2084          */
2085         cid = scmd_id(scsicmd);
2086         if (cid != host->this_id) {
2087                 if (scmd_channel(scsicmd) == CONTAINER_CHANNEL) {
2088                         if((cid >= dev->maximum_num_containers) ||
2089                                         (scsicmd->device->lun != 0)) {
2090                                 scsicmd->result = DID_NO_CONNECT << 16;
2091                                 scsicmd->scsi_done(scsicmd);
2092                                 return 0;
2093                         }
2094
2095                         /*
2096                          *      If the target container doesn't exist, it may have
2097                          *      been newly created
2098                          */
2099                         if (((fsa_dev_ptr[cid].valid & 1) == 0) ||
2100                           (fsa_dev_ptr[cid].sense_data.sense_key ==
2101                            NOT_READY)) {
2102                                 switch (scsicmd->cmnd[0]) {
2103                                 case SERVICE_ACTION_IN:
2104                                         if (!(dev->raw_io_interface) ||
2105                                             !(dev->raw_io_64) ||
2106                                             ((scsicmd->cmnd[1] & 0x1f) != SAI_READ_CAPACITY_16))
2107                                                 break;
2108                                 case INQUIRY:
2109                                 case READ_CAPACITY:
2110                                 case TEST_UNIT_READY:
2111                                         if (dev->in_reset)
2112                                                 return -1;
2113                                         return _aac_probe_container(scsicmd,
2114                                                         aac_probe_container_callback2);
2115                                 default:
2116                                         break;
2117                                 }
2118                         }
2119                 } else {  /* check for physical non-dasd devices */
2120                         if (dev->nondasd_support || expose_physicals ||
2121                                         dev->jbod) {
2122                                 if (dev->in_reset)
2123                                         return -1;
2124                                 return aac_send_srb_fib(scsicmd);
2125                         } else {
2126                                 scsicmd->result = DID_NO_CONNECT << 16;
2127                                 scsicmd->scsi_done(scsicmd);
2128                                 return 0;
2129                         }
2130                 }
2131         }
2132         /*
2133          * else Command for the controller itself
2134          */
2135         else if ((scsicmd->cmnd[0] != INQUIRY) &&       /* only INQUIRY & TUR cmnd supported for controller */
2136                 (scsicmd->cmnd[0] != TEST_UNIT_READY))
2137         {
2138                 dprintk((KERN_WARNING "Only INQUIRY & TUR command supported for controller, rcvd = 0x%x.\n", scsicmd->cmnd[0]));
2139                 scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_CHECK_CONDITION;
2140                 set_sense(&dev->fsa_dev[cid].sense_data,
2141                   ILLEGAL_REQUEST, SENCODE_INVALID_COMMAND,
2142                   ASENCODE_INVALID_COMMAND, 0, 0);
2143                 memcpy(scsicmd->sense_buffer, &dev->fsa_dev[cid].sense_data,
2144                        min_t(size_t, sizeof(dev->fsa_dev[cid].sense_data),
2145                              SCSI_SENSE_BUFFERSIZE));
2146                 scsicmd->scsi_done(scsicmd);
2147                 return 0;
2148         }
2149
2150
2151         /* Handle commands here that don't really require going out to the adapter */
2152         switch (scsicmd->cmnd[0]) {
2153         case INQUIRY:
2154         {
2155                 struct inquiry_data inq_data;
2156
2157                 dprintk((KERN_DEBUG "INQUIRY command, ID: %d.\n", cid));
2158                 memset(&inq_data, 0, sizeof (struct inquiry_data));
2159
2160                 if ((scsicmd->cmnd[1] & 0x1) && aac_wwn) {
2161                         char *arr = (char *)&inq_data;
2162
2163                         /* EVPD bit set */
2164                         arr[0] = (scmd_id(scsicmd) == host->this_id) ?
2165                           INQD_PDT_PROC : INQD_PDT_DA;
2166                         if (scsicmd->cmnd[2] == 0) {
2167                                 /* supported vital product data pages */
2168                                 arr[3] = 2;
2169                                 arr[4] = 0x0;
2170                                 arr[5] = 0x80;
2171                                 arr[1] = scsicmd->cmnd[2];
2172                                 scsi_sg_copy_from_buffer(scsicmd, &inq_data,
2173                                                          sizeof(inq_data));
2174                                 scsicmd->result = DID_OK << 16 |
2175                                   COMMAND_COMPLETE << 8 | SAM_STAT_GOOD;
2176                         } else if (scsicmd->cmnd[2] == 0x80) {
2177                                 /* unit serial number page */
2178                                 arr[3] = setinqserial(dev, &arr[4],
2179                                   scmd_id(scsicmd));
2180                                 arr[1] = scsicmd->cmnd[2];
2181                                 scsi_sg_copy_from_buffer(scsicmd, &inq_data,
2182                                                          sizeof(inq_data));
2183                                 if (aac_wwn != 2)
2184                                         return aac_get_container_serial(
2185                                                 scsicmd);
2186                                 /* SLES 10 SP1 special */
2187                                 scsicmd->result = DID_OK << 16 |
2188                                   COMMAND_COMPLETE << 8 | SAM_STAT_GOOD;
2189                         } else {
2190                                 /* vpd page not implemented */
2191                                 scsicmd->result = DID_OK << 16 |
2192                                   COMMAND_COMPLETE << 8 |
2193                                   SAM_STAT_CHECK_CONDITION;
2194                                 set_sense(&dev->fsa_dev[cid].sense_data,
2195                                   ILLEGAL_REQUEST, SENCODE_INVALID_CDB_FIELD,
2196                                   ASENCODE_NO_SENSE, 7, 2);
2197                                 memcpy(scsicmd->sense_buffer,
2198                                   &dev->fsa_dev[cid].sense_data,
2199                                   min_t(size_t,
2200                                         sizeof(dev->fsa_dev[cid].sense_data),
2201                                         SCSI_SENSE_BUFFERSIZE));
2202                         }
2203                         scsicmd->scsi_done(scsicmd);
2204                         return 0;
2205                 }
2206                 inq_data.inqd_ver = 2;  /* claim compliance to SCSI-2 */
2207                 inq_data.inqd_rdf = 2;  /* A response data format value of two indicates that the data shall be in the format specified in SCSI-2 */
2208                 inq_data.inqd_len = 31;
2209                 /*Format for "pad2" is  RelAdr | WBus32 | WBus16 |  Sync  | Linked |Reserved| CmdQue | SftRe */
2210                 inq_data.inqd_pad2= 0x32 ;       /*WBus16|Sync|CmdQue */
2211                 /*
2212                  *      Set the Vendor, Product, and Revision Level
2213                  *      see: <vendor>.c i.e. aac.c
2214                  */
2215                 if (cid == host->this_id) {
2216                         setinqstr(dev, (void *) (inq_data.inqd_vid), ARRAY_SIZE(container_types));
2217                         inq_data.inqd_pdt = INQD_PDT_PROC;      /* Processor device */
2218                         scsi_sg_copy_from_buffer(scsicmd, &inq_data,
2219                                                  sizeof(inq_data));
2220                         scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_GOOD;
2221                         scsicmd->scsi_done(scsicmd);
2222                         return 0;
2223                 }
2224                 if (dev->in_reset)
2225                         return -1;
2226                 setinqstr(dev, (void *) (inq_data.inqd_vid), fsa_dev_ptr[cid].type);
2227                 inq_data.inqd_pdt = INQD_PDT_DA;        /* Direct/random access device */
2228                 scsi_sg_copy_from_buffer(scsicmd, &inq_data, sizeof(inq_data));
2229                 return aac_get_container_name(scsicmd);
2230         }
2231         case SERVICE_ACTION_IN:
2232                 if (!(dev->raw_io_interface) ||
2233                     !(dev->raw_io_64) ||
2234                     ((scsicmd->cmnd[1] & 0x1f) != SAI_READ_CAPACITY_16))
2235                         break;
2236         {
2237                 u64 capacity;
2238                 char cp[13];
2239                 unsigned int alloc_len;
2240
2241                 dprintk((KERN_DEBUG "READ CAPACITY_16 command.\n"));
2242                 capacity = fsa_dev_ptr[cid].size - 1;
2243                 cp[0] = (capacity >> 56) & 0xff;
2244                 cp[1] = (capacity >> 48) & 0xff;
2245                 cp[2] = (capacity >> 40) & 0xff;
2246                 cp[3] = (capacity >> 32) & 0xff;
2247                 cp[4] = (capacity >> 24) & 0xff;
2248                 cp[5] = (capacity >> 16) & 0xff;
2249                 cp[6] = (capacity >> 8) & 0xff;
2250                 cp[7] = (capacity >> 0) & 0xff;
2251                 cp[8] = 0;
2252                 cp[9] = 0;
2253                 cp[10] = 2;
2254                 cp[11] = 0;
2255                 cp[12] = 0;
2256
2257                 alloc_len = ((scsicmd->cmnd[10] << 24)
2258                              + (scsicmd->cmnd[11] << 16)
2259                              + (scsicmd->cmnd[12] << 8) + scsicmd->cmnd[13]);
2260
2261                 alloc_len = min_t(size_t, alloc_len, sizeof(cp));
2262                 scsi_sg_copy_from_buffer(scsicmd, cp, alloc_len);
2263                 if (alloc_len < scsi_bufflen(scsicmd))
2264                         scsi_set_resid(scsicmd,
2265                                        scsi_bufflen(scsicmd) - alloc_len);
2266
2267                 /* Do not cache partition table for arrays */
2268                 scsicmd->device->removable = 1;
2269
2270                 scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_GOOD;
2271                 scsicmd->scsi_done(scsicmd);
2272
2273                 return 0;
2274         }
2275
2276         case READ_CAPACITY:
2277         {
2278                 u32 capacity;
2279                 char cp[8];
2280
2281                 dprintk((KERN_DEBUG "READ CAPACITY command.\n"));
2282                 if (fsa_dev_ptr[cid].size <= 0x100000000ULL)
2283                         capacity = fsa_dev_ptr[cid].size - 1;
2284                 else
2285                         capacity = (u32)-1;
2286
2287                 cp[0] = (capacity >> 24) & 0xff;
2288                 cp[1] = (capacity >> 16) & 0xff;
2289                 cp[2] = (capacity >> 8) & 0xff;
2290                 cp[3] = (capacity >> 0) & 0xff;
2291                 cp[4] = 0;
2292                 cp[5] = 0;
2293                 cp[6] = 2;
2294                 cp[7] = 0;
2295                 scsi_sg_copy_from_buffer(scsicmd, cp, sizeof(cp));
2296                 /* Do not cache partition table for arrays */
2297                 scsicmd->device->removable = 1;
2298                 scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 |
2299                   SAM_STAT_GOOD;
2300                 scsicmd->scsi_done(scsicmd);
2301
2302                 return 0;
2303         }
2304
2305         case MODE_SENSE:
2306         {
2307                 char mode_buf[7];
2308                 int mode_buf_length = 4;
2309
2310                 dprintk((KERN_DEBUG "MODE SENSE command.\n"));
2311                 mode_buf[0] = 3;        /* Mode data length */
2312                 mode_buf[1] = 0;        /* Medium type - default */
2313                 mode_buf[2] = 0;        /* Device-specific param,
2314                                            bit 8: 0/1 = write enabled/protected
2315                                            bit 4: 0/1 = FUA enabled */
2316                 if (dev->raw_io_interface && ((aac_cache & 5) != 1))
2317                         mode_buf[2] = 0x10;
2318                 mode_buf[3] = 0;        /* Block descriptor length */
2319                 if (((scsicmd->cmnd[2] & 0x3f) == 8) ||
2320                   ((scsicmd->cmnd[2] & 0x3f) == 0x3f)) {
2321                         mode_buf[0] = 6;
2322                         mode_buf[4] = 8;
2323                         mode_buf[5] = 1;
2324                         mode_buf[6] = ((aac_cache & 6) == 2)
2325                                 ? 0 : 0x04; /* WCE */
2326                         mode_buf_length = 7;
2327                         if (mode_buf_length > scsicmd->cmnd[4])
2328                                 mode_buf_length = scsicmd->cmnd[4];
2329                 }
2330                 scsi_sg_copy_from_buffer(scsicmd, mode_buf, mode_buf_length);
2331                 scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_GOOD;
2332                 scsicmd->scsi_done(scsicmd);
2333
2334                 return 0;
2335         }
2336         case MODE_SENSE_10:
2337         {
2338                 char mode_buf[11];
2339                 int mode_buf_length = 8;
2340
2341                 dprintk((KERN_DEBUG "MODE SENSE 10 byte command.\n"));
2342                 mode_buf[0] = 0;        /* Mode data length (MSB) */
2343                 mode_buf[1] = 6;        /* Mode data length (LSB) */
2344                 mode_buf[2] = 0;        /* Medium type - default */
2345                 mode_buf[3] = 0;        /* Device-specific param,
2346                                            bit 8: 0/1 = write enabled/protected
2347                                            bit 4: 0/1 = FUA enabled */
2348                 if (dev->raw_io_interface && ((aac_cache & 5) != 1))
2349                         mode_buf[3] = 0x10;
2350                 mode_buf[4] = 0;        /* reserved */
2351                 mode_buf[5] = 0;        /* reserved */
2352                 mode_buf[6] = 0;        /* Block descriptor length (MSB) */
2353                 mode_buf[7] = 0;        /* Block descriptor length (LSB) */
2354                 if (((scsicmd->cmnd[2] & 0x3f) == 8) ||
2355                   ((scsicmd->cmnd[2] & 0x3f) == 0x3f)) {
2356                         mode_buf[1] = 9;
2357                         mode_buf[8] = 8;
2358                         mode_buf[9] = 1;
2359                         mode_buf[10] = ((aac_cache & 6) == 2)
2360                                 ? 0 : 0x04; /* WCE */
2361                         mode_buf_length = 11;
2362                         if (mode_buf_length > scsicmd->cmnd[8])
2363                                 mode_buf_length = scsicmd->cmnd[8];
2364                 }
2365                 scsi_sg_copy_from_buffer(scsicmd, mode_buf, mode_buf_length);
2366
2367                 scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_GOOD;
2368                 scsicmd->scsi_done(scsicmd);
2369
2370                 return 0;
2371         }
2372         case REQUEST_SENSE:
2373                 dprintk((KERN_DEBUG "REQUEST SENSE command.\n"));
2374                 memcpy(scsicmd->sense_buffer, &dev->fsa_dev[cid].sense_data, sizeof (struct sense_data));
2375                 memset(&dev->fsa_dev[cid].sense_data, 0, sizeof (struct sense_data));
2376                 scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_GOOD;
2377                 scsicmd->scsi_done(scsicmd);
2378                 return 0;
2379
2380         case ALLOW_MEDIUM_REMOVAL:
2381                 dprintk((KERN_DEBUG "LOCK command.\n"));
2382                 if (scsicmd->cmnd[4])
2383                         fsa_dev_ptr[cid].locked = 1;
2384                 else
2385                         fsa_dev_ptr[cid].locked = 0;
2386
2387                 scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_GOOD;
2388                 scsicmd->scsi_done(scsicmd);
2389                 return 0;
2390         /*
2391          *      These commands are all No-Ops
2392          */
2393         case TEST_UNIT_READY:
2394                 if (fsa_dev_ptr[cid].sense_data.sense_key == NOT_READY) {
2395                         scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 |
2396                                 SAM_STAT_CHECK_CONDITION;
2397                         set_sense(&dev->fsa_dev[cid].sense_data,
2398                                   NOT_READY, SENCODE_BECOMING_READY,
2399                                   ASENCODE_BECOMING_READY, 0, 0);
2400                         memcpy(scsicmd->sense_buffer,
2401                                &dev->fsa_dev[cid].sense_data,
2402                                min_t(size_t,
2403                                      sizeof(dev->fsa_dev[cid].sense_data),
2404                                      SCSI_SENSE_BUFFERSIZE));
2405                         scsicmd->scsi_done(scsicmd);
2406                         return 0;
2407                 }
2408                 /* FALLTHRU */
2409         case RESERVE:
2410         case RELEASE:
2411         case REZERO_UNIT:
2412         case REASSIGN_BLOCKS:
2413         case SEEK_10:
2414                 scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_GOOD;
2415                 scsicmd->scsi_done(scsicmd);
2416                 return 0;
2417
2418         case START_STOP:
2419                 return aac_start_stop(scsicmd);
2420         }
2421
2422         switch (scsicmd->cmnd[0])
2423         {
2424                 case READ_6:
2425                 case READ_10:
2426                 case READ_12:
2427                 case READ_16:
2428                         if (dev->in_reset)
2429                                 return -1;
2430                         /*
2431                          *      Hack to keep track of ordinal number of the device that
2432                          *      corresponds to a container. Needed to convert
2433                          *      containers to /dev/sd device names
2434                          */
2435
2436                         if (scsicmd->request->rq_disk)
2437                                 strlcpy(fsa_dev_ptr[cid].devname,
2438                                 scsicmd->request->rq_disk->disk_name,
2439                                 min(sizeof(fsa_dev_ptr[cid].devname),
2440                                 sizeof(scsicmd->request->rq_disk->disk_name) + 1));
2441
2442                         return aac_read(scsicmd);
2443
2444                 case WRITE_6:
2445                 case WRITE_10:
2446                 case WRITE_12:
2447                 case WRITE_16:
2448                         if (dev->in_reset)
2449                                 return -1;
2450                         return aac_write(scsicmd);
2451
2452                 case SYNCHRONIZE_CACHE:
2453                         if (((aac_cache & 6) == 6) && dev->cache_protected) {
2454                                 scsicmd->result = DID_OK << 16 |
2455                                         COMMAND_COMPLETE << 8 | SAM_STAT_GOOD;
2456                                 scsicmd->scsi_done(scsicmd);
2457                                 return 0;
2458                         }
2459                         /* Issue FIB to tell Firmware to flush it's cache */
2460                         if ((aac_cache & 6) != 2)
2461                                 return aac_synchronize(scsicmd);
2462                         /* FALLTHRU */
2463                 default:
2464                         /*
2465                          *      Unhandled commands
2466                          */
2467                         dprintk((KERN_WARNING "Unhandled SCSI Command: 0x%x.\n", scsicmd->cmnd[0]));
2468                         scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_CHECK_CONDITION;
2469                         set_sense(&dev->fsa_dev[cid].sense_data,
2470                           ILLEGAL_REQUEST, SENCODE_INVALID_COMMAND,
2471                           ASENCODE_INVALID_COMMAND, 0, 0);
2472                         memcpy(scsicmd->sense_buffer, &dev->fsa_dev[cid].sense_data,
2473                                 min_t(size_t,
2474                                       sizeof(dev->fsa_dev[cid].sense_data),
2475                                       SCSI_SENSE_BUFFERSIZE));
2476                         scsicmd->scsi_done(scsicmd);
2477                         return 0;
2478         }
2479 }
2480
2481 static int query_disk(struct aac_dev *dev, void __user *arg)
2482 {
2483         struct aac_query_disk qd;
2484         struct fsa_dev_info *fsa_dev_ptr;
2485
2486         fsa_dev_ptr = dev->fsa_dev;
2487         if (!fsa_dev_ptr)
2488                 return -EBUSY;
2489         if (copy_from_user(&qd, arg, sizeof (struct aac_query_disk)))
2490                 return -EFAULT;
2491         if (qd.cnum == -1)
2492                 qd.cnum = qd.id;
2493         else if ((qd.bus == -1) && (qd.id == -1) && (qd.lun == -1))
2494         {
2495                 if (qd.cnum < 0 || qd.cnum >= dev->maximum_num_containers)
2496                         return -EINVAL;
2497                 qd.instance = dev->scsi_host_ptr->host_no;
2498                 qd.bus = 0;
2499                 qd.id = CONTAINER_TO_ID(qd.cnum);
2500                 qd.lun = CONTAINER_TO_LUN(qd.cnum);
2501         }
2502         else return -EINVAL;
2503
2504         qd.valid = fsa_dev_ptr[qd.cnum].valid != 0;
2505         qd.locked = fsa_dev_ptr[qd.cnum].locked;
2506         qd.deleted = fsa_dev_ptr[qd.cnum].deleted;
2507
2508         if (fsa_dev_ptr[qd.cnum].devname[0] == '\0')
2509                 qd.unmapped = 1;
2510         else
2511                 qd.unmapped = 0;
2512
2513         strlcpy(qd.name, fsa_dev_ptr[qd.cnum].devname,
2514           min(sizeof(qd.name), sizeof(fsa_dev_ptr[qd.cnum].devname) + 1));
2515
2516         if (copy_to_user(arg, &qd, sizeof (struct aac_query_disk)))
2517                 return -EFAULT;
2518         return 0;
2519 }
2520
2521 static int force_delete_disk(struct aac_dev *dev, void __user *arg)
2522 {
2523         struct aac_delete_disk dd;
2524         struct fsa_dev_info *fsa_dev_ptr;
2525
2526         fsa_dev_ptr = dev->fsa_dev;
2527         if (!fsa_dev_ptr)
2528                 return -EBUSY;
2529
2530         if (copy_from_user(&dd, arg, sizeof (struct aac_delete_disk)))
2531                 return -EFAULT;
2532
2533         if (dd.cnum >= dev->maximum_num_containers)
2534                 return -EINVAL;
2535         /*
2536          *      Mark this container as being deleted.
2537          */
2538         fsa_dev_ptr[dd.cnum].deleted = 1;
2539         /*
2540          *      Mark the container as no longer valid
2541          */
2542         fsa_dev_ptr[dd.cnum].valid = 0;
2543         return 0;
2544 }
2545
2546 static int delete_disk(struct aac_dev *dev, void __user *arg)
2547 {
2548         struct aac_delete_disk dd;
2549         struct fsa_dev_info *fsa_dev_ptr;
2550
2551         fsa_dev_ptr = dev->fsa_dev;
2552         if (!fsa_dev_ptr)
2553                 return -EBUSY;
2554
2555         if (copy_from_user(&dd, arg, sizeof (struct aac_delete_disk)))
2556                 return -EFAULT;
2557
2558         if (dd.cnum >= dev->maximum_num_containers)
2559                 return -EINVAL;
2560         /*
2561          *      If the container is locked, it can not be deleted by the API.
2562          */
2563         if (fsa_dev_ptr[dd.cnum].locked)
2564                 return -EBUSY;
2565         else {
2566                 /*
2567                  *      Mark the container as no longer being valid.
2568                  */
2569                 fsa_dev_ptr[dd.cnum].valid = 0;
2570                 fsa_dev_ptr[dd.cnum].devname[0] = '\0';
2571                 return 0;
2572         }
2573 }
2574
2575 int aac_dev_ioctl(struct aac_dev *dev, int cmd, void __user *arg)
2576 {
2577         switch (cmd) {
2578         case FSACTL_QUERY_DISK:
2579                 return query_disk(dev, arg);
2580         case FSACTL_DELETE_DISK:
2581                 return delete_disk(dev, arg);
2582         case FSACTL_FORCE_DELETE_DISK:
2583                 return force_delete_disk(dev, arg);
2584         case FSACTL_GET_CONTAINERS:
2585                 return aac_get_containers(dev);
2586         default:
2587                 return -ENOTTY;
2588         }
2589 }
2590
2591 /**
2592  *
2593  * aac_srb_callback
2594  * @context: the context set in the fib - here it is scsi cmd
2595  * @fibptr: pointer to the fib
2596  *
2597  * Handles the completion of a scsi command to a non dasd device
2598  *
2599  */
2600
2601 static void aac_srb_callback(void *context, struct fib * fibptr)
2602 {
2603         struct aac_dev *dev;
2604         struct aac_srb_reply *srbreply;
2605         struct scsi_cmnd *scsicmd;
2606
2607         scsicmd = (struct scsi_cmnd *) context;
2608
2609         if (!aac_valid_context(scsicmd, fibptr))
2610                 return;
2611
2612         BUG_ON(fibptr == NULL);
2613
2614         dev = fibptr->dev;
2615
2616         srbreply = (struct aac_srb_reply *) fib_data(fibptr);
2617
2618         scsicmd->sense_buffer[0] = '\0';  /* Initialize sense valid flag to false */
2619         /*
2620          *      Calculate resid for sg
2621          */
2622
2623         scsi_set_resid(scsicmd, scsi_bufflen(scsicmd)
2624                        - le32_to_cpu(srbreply->data_xfer_length));
2625
2626         scsi_dma_unmap(scsicmd);
2627
2628         /* expose physical device if expose_physicald flag is on */
2629         if (scsicmd->cmnd[0] == INQUIRY && !(scsicmd->cmnd[1] & 0x01)
2630           && expose_physicals > 0)
2631                 aac_expose_phy_device(scsicmd);
2632
2633         /*
2634          * First check the fib status
2635          */
2636
2637         if (le32_to_cpu(srbreply->status) != ST_OK){
2638                 int len;
2639                 printk(KERN_WARNING "aac_srb_callback: srb failed, status = %d\n", le32_to_cpu(srbreply->status));
2640                 len = min_t(u32, le32_to_cpu(srbreply->sense_data_size),
2641                             SCSI_SENSE_BUFFERSIZE);
2642                 scsicmd->result = DID_ERROR << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_CHECK_CONDITION;
2643                 memcpy(scsicmd->sense_buffer, srbreply->sense_data, len);
2644         }
2645
2646         /*
2647          * Next check the srb status
2648          */
2649         switch( (le32_to_cpu(srbreply->srb_status))&0x3f){
2650         case SRB_STATUS_ERROR_RECOVERY:
2651         case SRB_STATUS_PENDING:
2652         case SRB_STATUS_SUCCESS:
2653                 scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8;
2654                 break;
2655         case SRB_STATUS_DATA_OVERRUN:
2656                 switch(scsicmd->cmnd[0]){
2657                 case  READ_6:
2658                 case  WRITE_6:
2659                 case  READ_10:
2660                 case  WRITE_10:
2661                 case  READ_12:
2662                 case  WRITE_12:
2663                 case  READ_16:
2664                 case  WRITE_16:
2665                         if (le32_to_cpu(srbreply->data_xfer_length) < scsicmd->underflow) {
2666                                 printk(KERN_WARNING"aacraid: SCSI CMD underflow\n");
2667                         } else {
2668                                 printk(KERN_WARNING"aacraid: SCSI CMD Data Overrun\n");
2669                         }
2670                         scsicmd->result = DID_ERROR << 16 | COMMAND_COMPLETE << 8;
2671                         break;
2672                 case INQUIRY: {
2673                         scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8;
2674                         break;
2675                 }
2676                 default:
2677                         scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8;
2678                         break;
2679                 }
2680                 break;
2681         case SRB_STATUS_ABORTED:
2682                 scsicmd->result = DID_ABORT << 16 | ABORT << 8;
2683                 break;
2684         case SRB_STATUS_ABORT_FAILED:
2685                 // Not sure about this one - but assuming the hba was trying to abort for some reason
2686                 scsicmd->result = DID_ERROR << 16 | ABORT << 8;
2687                 break;
2688         case SRB_STATUS_PARITY_ERROR:
2689                 scsicmd->result = DID_PARITY << 16 | MSG_PARITY_ERROR << 8;
2690                 break;
2691         case SRB_STATUS_NO_DEVICE:
2692         case SRB_STATUS_INVALID_PATH_ID:
2693         case SRB_STATUS_INVALID_TARGET_ID:
2694         case SRB_STATUS_INVALID_LUN:
2695         case SRB_STATUS_SELECTION_TIMEOUT:
2696                 scsicmd->result = DID_NO_CONNECT << 16 | COMMAND_COMPLETE << 8;
2697                 break;
2698
2699         case SRB_STATUS_COMMAND_TIMEOUT:
2700         case SRB_STATUS_TIMEOUT:
2701                 scsicmd->result = DID_TIME_OUT << 16 | COMMAND_COMPLETE << 8;
2702                 break;
2703
2704         case SRB_STATUS_BUSY:
2705                 scsicmd->result = DID_BUS_BUSY << 16 | COMMAND_COMPLETE << 8;
2706                 break;
2707
2708         case SRB_STATUS_BUS_RESET:
2709                 scsicmd->result = DID_RESET << 16 | COMMAND_COMPLETE << 8;
2710                 break;
2711
2712         case SRB_STATUS_MESSAGE_REJECTED:
2713                 scsicmd->result = DID_ERROR << 16 | MESSAGE_REJECT << 8;
2714                 break;
2715         case SRB_STATUS_REQUEST_FLUSHED:
2716         case SRB_STATUS_ERROR:
2717         case SRB_STATUS_INVALID_REQUEST:
2718         case SRB_STATUS_REQUEST_SENSE_FAILED:
2719         case SRB_STATUS_NO_HBA:
2720         case SRB_STATUS_UNEXPECTED_BUS_FREE:
2721         case SRB_STATUS_PHASE_SEQUENCE_FAILURE:
2722         case SRB_STATUS_BAD_SRB_BLOCK_LENGTH:
2723         case SRB_STATUS_DELAYED_RETRY:
2724         case SRB_STATUS_BAD_FUNCTION:
2725         case SRB_STATUS_NOT_STARTED:
2726         case SRB_STATUS_NOT_IN_USE:
2727         case SRB_STATUS_FORCE_ABORT:
2728         case SRB_STATUS_DOMAIN_VALIDATION_FAIL:
2729         default:
2730 #ifdef AAC_DETAILED_STATUS_INFO
2731                 printk("aacraid: SRB ERROR(%u) %s scsi cmd 0x%x - scsi status 0x%x\n",
2732                         le32_to_cpu(srbreply->srb_status) & 0x3F,
2733                         aac_get_status_string(
2734                                 le32_to_cpu(srbreply->srb_status) & 0x3F),
2735                         scsicmd->cmnd[0],
2736                         le32_to_cpu(srbreply->scsi_status));
2737 #endif
2738                 if ((scsicmd->cmnd[0] == ATA_12)
2739                   || (scsicmd->cmnd[0] == ATA_16)) {
2740                         if (scsicmd->cmnd[2] & (0x01 << 5)) {
2741                                 scsicmd->result = DID_OK << 16
2742                                                 | COMMAND_COMPLETE << 8;
2743                                 break;
2744                         } else {
2745                                 scsicmd->result = DID_ERROR << 16
2746                                                 | COMMAND_COMPLETE << 8;
2747                                 break;
2748                         }
2749                 } else {
2750                         scsicmd->result = DID_ERROR << 16
2751                                         | COMMAND_COMPLETE << 8;
2752                         break;
2753                 }
2754         }
2755         if (le32_to_cpu(srbreply->scsi_status) == SAM_STAT_CHECK_CONDITION) {
2756                 int len;
2757                 scsicmd->result |= SAM_STAT_CHECK_CONDITION;
2758                 len = min_t(u32, le32_to_cpu(srbreply->sense_data_size),
2759                             SCSI_SENSE_BUFFERSIZE);
2760 #ifdef AAC_DETAILED_STATUS_INFO
2761                 printk(KERN_WARNING "aac_srb_callback: check condition, status = %d len=%d\n",
2762                                         le32_to_cpu(srbreply->status), len);
2763 #endif
2764                 memcpy(scsicmd->sense_buffer, srbreply->sense_data, len);
2765         }
2766         /*
2767          * OR in the scsi status (already shifted up a bit)
2768          */
2769         scsicmd->result |= le32_to_cpu(srbreply->scsi_status);
2770
2771         aac_fib_complete(fibptr);
2772         aac_fib_free(fibptr);
2773         scsicmd->scsi_done(scsicmd);
2774 }
2775
2776 /**
2777  *
2778  * aac_send_scb_fib
2779  * @scsicmd: the scsi command block
2780  *
2781  * This routine will form a FIB and fill in the aac_srb from the
2782  * scsicmd passed in.
2783  */
2784
2785 static int aac_send_srb_fib(struct scsi_cmnd* scsicmd)
2786 {
2787         struct fib* cmd_fibcontext;
2788         struct aac_dev* dev;
2789         int status;
2790
2791         dev = (struct aac_dev *)scsicmd->device->host->hostdata;
2792         if (scmd_id(scsicmd) >= dev->maximum_num_physicals ||
2793                         scsicmd->device->lun > 7) {
2794                 scsicmd->result = DID_NO_CONNECT << 16;
2795                 scsicmd->scsi_done(scsicmd);
2796                 return 0;
2797         }
2798
2799         /*
2800          *      Allocate and initialize a Fib then setup a BlockWrite command
2801          */
2802         if (!(cmd_fibcontext = aac_fib_alloc(dev))) {
2803                 return -1;
2804         }
2805         status = aac_adapter_scsi(cmd_fibcontext, scsicmd);
2806
2807         /*
2808          *      Check that the command queued to the controller
2809          */
2810         if (status == -EINPROGRESS) {
2811                 scsicmd->SCp.phase = AAC_OWNER_FIRMWARE;
2812                 return 0;
2813         }
2814
2815         printk(KERN_WARNING "aac_srb: aac_fib_send failed with status: %d\n", status);
2816         aac_fib_complete(cmd_fibcontext);
2817         aac_fib_free(cmd_fibcontext);
2818
2819         return -1;
2820 }
2821
2822 static unsigned long aac_build_sg(struct scsi_cmnd* scsicmd, struct sgmap* psg)
2823 {
2824         struct aac_dev *dev;
2825         unsigned long byte_count = 0;
2826         int nseg;
2827
2828         dev = (struct aac_dev *)scsicmd->device->host->hostdata;
2829         // Get rid of old data
2830         psg->count = 0;
2831         psg->sg[0].addr = 0;
2832         psg->sg[0].count = 0;
2833
2834         nseg = scsi_dma_map(scsicmd);
2835         BUG_ON(nseg < 0);
2836         if (nseg) {
2837                 struct scatterlist *sg;
2838                 int i;
2839
2840                 psg->count = cpu_to_le32(nseg);
2841
2842                 scsi_for_each_sg(scsicmd, sg, nseg, i) {
2843                         psg->sg[i].addr = cpu_to_le32(sg_dma_address(sg));
2844                         psg->sg[i].count = cpu_to_le32(sg_dma_len(sg));
2845                         byte_count += sg_dma_len(sg);
2846                 }
2847                 /* hba wants the size to be exact */
2848                 if (byte_count > scsi_bufflen(scsicmd)) {
2849                         u32 temp = le32_to_cpu(psg->sg[i-1].count) -
2850                                 (byte_count - scsi_bufflen(scsicmd));
2851                         psg->sg[i-1].count = cpu_to_le32(temp);
2852                         byte_count = scsi_bufflen(scsicmd);
2853                 }
2854                 /* Check for command underflow */
2855                 if(scsicmd->underflow && (byte_count < scsicmd->underflow)){
2856                         printk(KERN_WARNING"aacraid: cmd len %08lX cmd underflow %08X\n",
2857                                         byte_count, scsicmd->underflow);
2858                 }
2859         }
2860         return byte_count;
2861 }
2862
2863
2864 static unsigned long aac_build_sg64(struct scsi_cmnd* scsicmd, struct sgmap64* psg)
2865 {
2866         struct aac_dev *dev;
2867         unsigned long byte_count = 0;
2868         u64 addr;
2869         int nseg;
2870
2871         dev = (struct aac_dev *)scsicmd->device->host->hostdata;
2872         // Get rid of old data
2873         psg->count = 0;
2874         psg->sg[0].addr[0] = 0;
2875         psg->sg[0].addr[1] = 0;
2876         psg->sg[0].count = 0;
2877
2878         nseg = scsi_dma_map(scsicmd);
2879         BUG_ON(nseg < 0);
2880         if (nseg) {
2881                 struct scatterlist *sg;
2882                 int i;
2883
2884                 scsi_for_each_sg(scsicmd, sg, nseg, i) {
2885                         int count = sg_dma_len(sg);
2886                         addr = sg_dma_address(sg);
2887                         psg->sg[i].addr[0] = cpu_to_le32(addr & 0xffffffff);
2888                         psg->sg[i].addr[1] = cpu_to_le32(addr>>32);
2889                         psg->sg[i].count = cpu_to_le32(count);
2890                         byte_count += count;
2891                 }
2892                 psg->count = cpu_to_le32(nseg);
2893                 /* hba wants the size to be exact */
2894                 if (byte_count > scsi_bufflen(scsicmd)) {
2895                         u32 temp = le32_to_cpu(psg->sg[i-1].count) -
2896                                 (byte_count - scsi_bufflen(scsicmd));
2897                         psg->sg[i-1].count = cpu_to_le32(temp);
2898                         byte_count = scsi_bufflen(scsicmd);
2899                 }
2900                 /* Check for command underflow */
2901                 if(scsicmd->underflow && (byte_count < scsicmd->underflow)){
2902                         printk(KERN_WARNING"aacraid: cmd len %08lX cmd underflow %08X\n",
2903                                         byte_count, scsicmd->underflow);
2904                 }
2905         }
2906         return byte_count;
2907 }
2908
2909 static unsigned long aac_build_sgraw(struct scsi_cmnd* scsicmd, struct sgmapraw* psg)
2910 {
2911         unsigned long byte_count = 0;
2912         int nseg;
2913
2914         // Get rid of old data
2915         psg->count = 0;
2916         psg->sg[0].next = 0;
2917         psg->sg[0].prev = 0;
2918         psg->sg[0].addr[0] = 0;
2919         psg->sg[0].addr[1] = 0;
2920         psg->sg[0].count = 0;
2921         psg->sg[0].flags = 0;
2922
2923         nseg = scsi_dma_map(scsicmd);
2924         BUG_ON(nseg < 0);
2925         if (nseg) {
2926                 struct scatterlist *sg;
2927                 int i;
2928
2929                 scsi_for_each_sg(scsicmd, sg, nseg, i) {
2930                         int count = sg_dma_len(sg);
2931                         u64 addr = sg_dma_address(sg);
2932                         psg->sg[i].next = 0;
2933                         psg->sg[i].prev = 0;
2934                         psg->sg[i].addr[1] = cpu_to_le32((u32)(addr>>32));
2935                         psg->sg[i].addr[0] = cpu_to_le32((u32)(addr & 0xffffffff));
2936                         psg->sg[i].count = cpu_to_le32(count);
2937                         psg->sg[i].flags = 0;
2938                         byte_count += count;
2939                 }
2940                 psg->count = cpu_to_le32(nseg);
2941                 /* hba wants the size to be exact */
2942                 if (byte_count > scsi_bufflen(scsicmd)) {
2943                         u32 temp = le32_to_cpu(psg->sg[i-1].count) -
2944                                 (byte_count - scsi_bufflen(scsicmd));
2945                         psg->sg[i-1].count = cpu_to_le32(temp);
2946                         byte_count = scsi_bufflen(scsicmd);
2947                 }
2948                 /* Check for command underflow */
2949                 if(scsicmd->underflow && (byte_count < scsicmd->underflow)){
2950                         printk(KERN_WARNING"aacraid: cmd len %08lX cmd underflow %08X\n",
2951                                         byte_count, scsicmd->underflow);
2952                 }
2953         }
2954         return byte_count;
2955 }
2956
2957 #ifdef AAC_DETAILED_STATUS_INFO
2958
2959 struct aac_srb_status_info {
2960         u32     status;
2961         char    *str;
2962 };
2963
2964
2965 static struct aac_srb_status_info srb_status_info[] = {
2966         { SRB_STATUS_PENDING,           "Pending Status"},
2967         { SRB_STATUS_SUCCESS,           "Success"},
2968         { SRB_STATUS_ABORTED,           "Aborted Command"},
2969         { SRB_STATUS_ABORT_FAILED,      "Abort Failed"},
2970         { SRB_STATUS_ERROR,             "Error Event"},
2971         { SRB_STATUS_BUSY,              "Device Busy"},
2972         { SRB_STATUS_INVALID_REQUEST,   "Invalid Request"},
2973         { SRB_STATUS_INVALID_PATH_ID,   "Invalid Path ID"},
2974         { SRB_STATUS_NO_DEVICE,         "No Device"},
2975         { SRB_STATUS_TIMEOUT,           "Timeout"},
2976         { SRB_STATUS_SELECTION_TIMEOUT, "Selection Timeout"},
2977         { SRB_STATUS_COMMAND_TIMEOUT,   "Command Timeout"},
2978         { SRB_STATUS_MESSAGE_REJECTED,  "Message Rejected"},
2979         { SRB_STATUS_BUS_RESET,         "Bus Reset"},
2980         { SRB_STATUS_PARITY_ERROR,      "Parity Error"},
2981         { SRB_STATUS_REQUEST_SENSE_FAILED,"Request Sense Failed"},
2982         { SRB_STATUS_NO_HBA,            "No HBA"},
2983         { SRB_STATUS_DATA_OVERRUN,      "Data Overrun/Data Underrun"},
2984         { SRB_STATUS_UNEXPECTED_BUS_FREE,"Unexpected Bus Free"},
2985         { SRB_STATUS_PHASE_SEQUENCE_FAILURE,"Phase Error"},
2986         { SRB_STATUS_BAD_SRB_BLOCK_LENGTH,"Bad Srb Block Length"},
2987         { SRB_STATUS_REQUEST_FLUSHED,   "Request Flushed"},
2988         { SRB_STATUS_DELAYED_RETRY,     "Delayed Retry"},
2989         { SRB_STATUS_INVALID_LUN,       "Invalid LUN"},
2990         { SRB_STATUS_INVALID_TARGET_ID, "Invalid TARGET ID"},
2991         { SRB_STATUS_BAD_FUNCTION,      "Bad Function"},
2992         { SRB_STATUS_ERROR_RECOVERY,    "Error Recovery"},
2993         { SRB_STATUS_NOT_STARTED,       "Not Started"},
2994         { SRB_STATUS_NOT_IN_USE,        "Not In Use"},
2995         { SRB_STATUS_FORCE_ABORT,       "Force Abort"},
2996         { SRB_STATUS_DOMAIN_VALIDATION_FAIL,"Domain Validation Failure"},
2997         { 0xff,                         "Unknown Error"}
2998 };
2999
3000 char *aac_get_status_string(u32 status)
3001 {
3002         int i;
3003
3004         for (i = 0; i < ARRAY_SIZE(srb_status_info); i++)
3005                 if (srb_status_info[i].status == status)
3006                         return srb_status_info[i].str;
3007
3008         return "Bad Status Code";
3009 }
3010
3011 #endif